Add authors taxonomy for blog posts

[earnestma]

Prerequisites

Put an x into the box(es) that apply:

• This pull request fixes a bug.
• This pull request adds a feature.
• This pull request introduces breaking change. [?]

Description

Hi and thanks for this wonderful theme! This PR adds an "authors" taxonomy for blog posts. The person/ user icon shows before tags/categories, and can be browsed like any other taxonomy.

Here are some screenshots:

Configuration:

• toml:

+++
authors = ["author 1", "author 2"]
+++

• yaml:

---
authors: ["author 1"]
---

General

• Added {{ with .Page.Params.Authors }}{{ partial "taxonomy/authors.html" . }}{{ end }} to layouts/posts/single.html
• Added partial taxonomy/authors.html with the fa-user icon
• Added en (English) string for author
• Added authors to default post archetype
• Added the taxonomy to the exampleSite config.toml file

Resources

• If you have changed any SCSS code, run make release to regenerate all CSS files

Contributors

• Add yourself to CONTRIBUTORS.md if you aren't on it already

[luizdepra]

Nice. Could you please add some authors to one or two post inside the exampleSite demo? That way we can see this new feature in action.

[earnestma]

sure!

[luizdepra]

You've added these scss files by mistake. Please, remove the resources folder from inside exampleSite.
Also, there is a simple conflict to solve in CONTRIBUTORS.md.

[luizdepra]

Nicely done! Thanks.