From master to main

Adapted to the default branch renaming from `master` to `main` [1] like
documented in detail in the main task issue
svengreb/styleguide-git#11 [2].

[1]: https://github.com/github/renaming
[2]: svengreb/styleguide-git#11

Co-authored-by: Sven Greb <development@svengreb.de>

Subtask of svengreb/styleguide-git#11
GH-21

.github/ISSUE_TEMPLATE.md

@@ -1,6 +1,6 @@
 <!-- Click on the "Preview" tab to render the instructions in a more readable format -->
 
-> **Please read the [contribution guidelines](https://github.com/arcticicestudio/styleguide-markdown/blob/master/CONTRIBUTING.md) before filling out this issue template**.
+> **Please read the [contribution guidelines](https://github.com/arcticicestudio/styleguide-markdown/blob/main/CONTRIBUTING.md) before filling out this issue template**.
 
 ## [Please follow one of the issue templates](https://github.com/arcticicestudio/styleguide-markdown/issues/new/choose)
 

.github/ISSUE_TEMPLATE/bugs.md

@@ -14,7 +14,7 @@ This section and the instructions in the sections below are only part of this is
 Please do your best to provide as much information as possible and use a clear and descriptive title for your bug report to help maintainers and the community understand and reproduce the behavior, find related reports and to resolve the ticket faster.
 
 - **Ensure the bug has not already been reported by using the [GitHub Issues search](https://github.com/arcticicestudio/styleguide-markdown/issues)** — check if this enhancement has already been suggested. If it has **and the issue is still open**, add your additions as comment to the existing issue instead of opening a new one. If you find a closed issue that seems to be similar to this one, include a link to the original issue in the [metadata head](#metadata-head) section of this issue.
-- **Ensure the bug is reproducible and has not already been fixed** — use the [latest version](https://github.com/arcticicestudio/styleguide-markdown/releases/latest) and [`master`](https://github.com/arcticicestudio/styleguide-markdown/tree/master) branch.
+- **Ensure the bug is reproducible and has not already been fixed** — use the [latest version](https://github.com/arcticicestudio/styleguide-markdown/releases/latest) and [`main`](https://github.com/arcticicestudio/styleguide-markdown/tree/main) branch.
 
 ## Metadata Head
 

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,6 @@
 <!-- Click on the "Preview" tab to render the instructions in a more readable format -->
 
-> **Please read the [contribution guidelines](https://github.com/arcticicestudio/styleguide-markdown/blob/master/CONTRIBUTING.md) before filling out this pull request template**.
+> **Please read the [contribution guidelines](https://github.com/arcticicestudio/styleguide-markdown/blob/main/CONTRIBUTING.md) before filling out this pull request template**.
 
 ## Prerequisites
 
@@ -10,7 +10,7 @@ Please do your best to provide as much information as possible and use a clear a
 
 - **Ensure the pull request has not already been submitted by using the [GitHub Pull Request search](https://github.com/arcticicestudio/styleguide-markdown/pulls)** — check if this enhancement or bug fix has already been suggested. If it has **and the pull request is still open**, add your additions as comment or [suggest a change](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/incorporating-feedback-in-your-pull-request#applying-a-suggested-change) to the existing pull request instead of opening a new one. If you find a closed pull request that seems to be similar to this one, include a link to the original pull request in the [metadata head](#metadata-head) section of this new pull request.
 - **Ensure to adhere to the [pull request contribution guidelines](https://github.com/arcticicestudio/styleguide-markdown/blob/main/CONTRIBUTING.md#pull-requests)**, especially the one for tests and documentations.
-- **Check if the enhancement has already been implemented or bug already fixed** — use the [latest version](https://github.com/arcticicestudio/styleguide-markdown/releases/latest) and [`master`](https://github.com/arcticicestudio/styleguide-markdown/tree/master) branch to ensure that the enhancement or bug fix has not already been added.
+- **Check if the enhancement has already been implemented or bug already fixed** — use the [latest version](https://github.com/arcticicestudio/styleguide-markdown/releases/latest) and [`main`](https://github.com/arcticicestudio/styleguide-markdown/tree/main) branch to ensure that the enhancement or bug fix has not already been added.
 
 ## Metadata Head
 

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ name: ci
 on:
   push:
     branches:
-      - master
+      - main
     tags:
       - v*
   pull_request:

CHANGELOG.md

@@ -1,4 +1,4 @@
-<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/master/assets/images/repository-hero.svg?sanitize=true"/></p>
+<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/main/assets/images/repository-hero.svg?sanitize=true"/></p>
 
 <p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/releases/latest" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Release&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://arcticicestudio.github.io/styleguide-markdown" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Docs&logo=read-the-docs&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a></p>
 
@@ -50,7 +50,7 @@
 
 <p align="center">Copyright &copy; 2018-present <a href="https://www.arcticicestudio.com" target="_blank" rel="noreferrer">Arctic Ice Studio</a> and <a href="https://www.svengreb.de" target="_blank" rel="noreferrer">Sven Greb</a></p>
 
-<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/master/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/main/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
 
 <!--
 +------------------+

CODE_OF_CONDUCT.md

@@ -56,6 +56,6 @@ Thanks for the inspirations and attributions to GitHub's [Open Source Guides][os
 
 [contrib-cov-1.4]: https://contributor-covenant.org/version/1/4/code-of-conduct
 [hoodie-coc]: http://hood.ie/code-of-conduct
-[mailmap]: https://github.com/arcticicestudio/styleguide-markdown/blob/master/.mailmap
+[mailmap]: https://github.com/arcticicestudio/styleguide-markdown/blob/main/.mailmap
 [oss-guides]: https://opensource.guide
 [ref-gender-neutral-docs]: https://modelviewculture.com/pieces/gendered-language-feature-or-bug-in-software-documentation

README.md

@@ -1,8 +1,8 @@
-<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/master/assets/images/repository-hero.svg?sanitize=true"/></p>
+<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/main/assets/images/repository-hero.svg?sanitize=true"/></p>
 
 <p align="center">The Arctic Ice Studio Markdown code style.</p>
 
-<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/releases/latest" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Release&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://arcticicestudio.github.io/styleguide-markdown" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Docs&logo=read-the-docs&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://github.com/arcticicestudio/styleguide-markdown/blob/master/CHANGELOG.md" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Changelog&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/releases/latest" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Release&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://arcticicestudio.github.io/styleguide-markdown" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Docs&logo=read-the-docs&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://github.com/arcticicestudio/styleguide-markdown/blob/main/CHANGELOG.md" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Changelog&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a></p>
 
 <p align="center"><a href="https://www.npmjs.com/package/@arcticicestudio/remark-preset-lint" target="_blank" rel="noreferrer"><img src="https://img.shields.io/npm/v/@arcticicestudio/remark-preset-lint.svg?style=flat-square&label=@arcticicestudio/remark-preset-lint&logoColor=eceff4&colorA=4c566a&colorB=88c0d0&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiI+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTEyIDE0SDRhMiAyIDAgMCAxLTItMlY0YTIgMiAwIDAgMSAyLTJoOGEyIDIgMCAwIDEgMiAydjhhMiAyIDAgMCAxLTIgMnpNNCAzLjMzMkEuNjcuNjcgMCAwIDAgMy4zMzIgNHY4YzAgLjM2Ny4zLjY2OC42NjguNjY4aDhhLjY3LjY3IDAgMCAwIC42NjgtLjY2OFY0QS42Ny42NyAwIDAgMCAxMiAzLjMzMnptMCAwIi8+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTggNmgyLjY2OHY2LjY2OEg4em0wIDAiLz48L3N2Zz4K"/></a></p>
 
@@ -33,7 +33,7 @@ The guide also includes information about [minimal, complete, and verifiable exa
 
 <p align="center">Copyright &copy; 2018-present <a href="https://www.arcticicestudio.com" target="_blank" rel="noreferrer">Arctic Ice Studio</a> and <a href="https://www.svengreb.de" target="_blank" rel="noreferrer">Sven Greb</a></p>
 
-<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/master/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/main/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
 
 [commonmark]: http://commonmark.org
 [docs-dev-building]: https://arcticicestudio.github.io/styleguide-markdown/development/building.html
@@ -60,5 +60,5 @@ The guide also includes information about [minimal, complete, and verifiable exa
 [docs]: https://arcticicestudio.github.io/styleguide-markdown
 [gfm]: https://github.github.com/gfm
 [gh-remarkjs/remark-lint]: https://github.com/remarkjs/remark-lint
-[gh-tree-pkg-remark-preset-lint]: https://github.com/arcticicestudio/styleguide-markdown/tree/master/packages/@arcticicestudio/remark-preset-lint
+[gh-tree-pkg-remark-preset-lint]: https://github.com/arcticicestudio/styleguide-markdown/tree/main/packages/@arcticicestudio/remark-preset-lint
 [remark]: https://remark.js.org

packages/@arcticicestudio/remark-preset-lint/README.md

@@ -1,8 +1,8 @@
-<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/master/assets/images/packages/@arcticicestudio/remark-preset-lint/repository-hero.svg?sanitize=true"/></p>
+<p align="center"><img src="https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/main/assets/images/packages/@arcticicestudio/remark-preset-lint/repository-hero.svg?sanitize=true"/></p>
 
 <p align="center">The <a href="https://github.com/arcticicestudio/styleguide-markdown" target="_blank" rel="noreferrer">Arctic Ice Studio Markdown code style guide</a> rules as an extensible <a href="https://github.com/remarkjs/remark-lint" target="_blank" rel="noreferrer">remark-lint</a> rule preset.</p>
 
-<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/releases/latest" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Release&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://arcticicestudio.github.io/styleguide-markdown" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Docs&logo=read-the-docs&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://github.com/arcticicestudio/styleguide-markdown/blob/master/CHANGELOG.md" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Changelog&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/releases/latest" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Release&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://arcticicestudio.github.io/styleguide-markdown" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Docs&logo=read-the-docs&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a> <a href="https://github.com/arcticicestudio/styleguide-markdown/blob/main/CHANGELOG.md" target="_blank" rel="noreferrer"><img src="https://img.shields.io/github/release/arcticicestudio/styleguide-markdown.svg?style=flat-square&label=Changelog&logo=github&logoColor=eceff4&colorA=4c566a&colorB=88c0d0"/></a></p>
 
 <p align="center"><a href="https://www.npmjs.com/package/@arcticicestudio/remark-preset-lint" target="_blank" rel="noreferrer"><img src="https://img.shields.io/npm/v/@arcticicestudio/remark-preset-lint.svg?style=flat-square&label=npm&logoColor=eceff4&colorA=4c566a&colorB=88c0d0&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiI+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTEyIDE0SDRhMiAyIDAgMCAxLTItMlY0YTIgMiAwIDAgMSAyLTJoOGEyIDIgMCAwIDEgMiAydjhhMiAyIDAgMCAxLTIgMnpNNCAzLjMzMkEuNjcuNjcgMCAwIDAgMy4zMzIgNHY4YzAgLjM2Ny4zLjY2OC42NjguNjY4aDhhLjY3LjY3IDAgMCAwIC42NjgtLjY2OFY0QS42Ny42NyAwIDAgMCAxMiAzLjMzMnptMCAwIi8+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTggNmgyLjY2OHY2LjY2OEg4em0wIDAiLz48L3N2Zz4K"/></a> <a href="https://www.npmjs.com/package/@arcticicestudio/remark-preset-lint" target="_blank" rel="noreferrer"><img src="https://img.shields.io/npm/dt/@arcticicestudio/remark-preset-lint.svg?style=flat-square&label=Downloads&logoColor=eceff4&colorA=4c566a&colorB=88c0d0&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiI+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTEyIDE0SDRhMiAyIDAgMCAxLTItMlY0YTIgMiAwIDAgMSAyLTJoOGEyIDIgMCAwIDEgMiAydjhhMiAyIDAgMCAxLTIgMnpNNCAzLjMzMkEuNjcuNjcgMCAwIDAgMy4zMzIgNHY4YzAgLjM2Ny4zLjY2OC42NjguNjY4aDhhLjY3LjY3IDAgMCAwIC42NjgtLjY2OFY0QS42Ny42NyAwIDAgMCAxMiAzLjMzMnptMCAwIi8+PHBhdGggZmlsbD0iI2Q4ZGVlOSIgZD0iTTggNmgyLjY2OHY2LjY2OEg4em0wIDAiLz48L3N2Zz4K"/></a></p>
 
@@ -101,7 +101,7 @@ Please read the [contribution guidelines][ghio-arcticicestudio/styleguide-markdo
 
 <p align="center">Copyright &copy; 2018-present <a href="https://www.arcticicestudio.com" target="_blank" rel="noreferrer">Arctic Ice Studio</a> and <a href="https://www.svengreb.de" target="_blank" rel="noreferrer">Sven Greb</a></p>
 
-<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/master/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
+<p align="center"><a href="https://github.com/arcticicestudio/styleguide-markdown/blob/main/LICENSE" target="_blank" rel="noreferrer"><img src="https://img.shields.io/static/v1.svg?style=flat-square&label=License&message=MIT&logoColor=eceff4&logo=github&colorA=4c566a&colorB=88c0d0"/></a></p>
 
 [gh-arcticicestudio/styleguide-markdown]: https://github.com/arcticicestudio/styleguide-markdown
 [gh-blog-npm_v7]: https://github.blog/2020-10-13-presenting-v7-0-0-of-the-npm-cli