diff --git a/.formatter.exs b/.formatter.exs
index d304ff3..d2cda26 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -1,3 +1,4 @@
+# Used by "mix format"
 [
   inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
 ]
diff --git a/.gitignore b/.gitignore
index 3caba00..216bc59 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,14 @@
 # The directory Mix will write compiled artifacts to.
-/_build
+/_build/
 
 # If you run "mix test --cover", coverage assets end up here.
-/cover
+/cover/
 
 # The directory Mix downloads your dependencies sources to.
-/deps
+/deps/
 
-# Where 3rd-party dependencies like ExDoc output generated docs.
-/doc
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
 
 # Ignore .fetch files in case you like to edit your project deps locally.
 /.fetch
@@ -19,5 +19,11 @@ erl_crash.dump
 # Also ignore archive artifacts (built via "mix archive.build").
 *.ez
 
+# Ignore package tarball (built via "mix hex.build").
+slugify-*.tar
+
+# Temporary files for e.g. tests.
+/tmp
+
 # macOS
 .DS_Store
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a725a4..ed31b35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
 ## 1.3.1 (19.06.2020)
 
 ### Fixes
diff --git a/README.md b/README.md
index 3f3a1a6..a27e605 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,11 @@
 # Slugify
 
-![](https://github.com/jayjun/slugify/workflows/CI/badge.svg)
-[![Hex.pm](https://img.shields.io/hexpm/v/slugify.svg)](https://hex.pm/packages/slugify)
+[![CI](https://github.com/jayjun/slugify/actions/workflows/main.yml/badge.svg)](https://github.com/jayjun/slugify/actions/workflows/main.yml)
+[![Module Version](https://img.shields.io/hexpm/v/slugify.svg)](https://hex.pm/packages/slugify)
+[![Hex Docs](https://img.shields.io/badge/hex-docs-lightgreen.svg)](https://hexdocs.pm/slugify/)
+[![Total Download](https://img.shields.io/hexpm/dt/slugify.svg)](https://hex.pm/packages/slugify)
+[![License](https://img.shields.io/hexpm/l/slugify.svg)](https://github.com/jayjun/slugify/blob/master/LICENSE)
+[![Last Updated](https://img.shields.io/github/last-commit/jayjun/slugify.svg)](https://github.com/jayjun/slugify/commits/master)
 
 Transform strings from any language into slugs.
 
@@ -84,7 +88,7 @@ pinyin.
 
 ## Installation
 
-Add `slugify` to your list of dependencies in `mix.exs`:
+Add `:slugify` to your list of dependencies in `mix.exs`:
 
 ```elixir
 def deps do
@@ -101,16 +105,17 @@ end
 
 ## License
 
-Slugify is released under [MIT][4] license.
+Copyright (c) 2017 Tan Jay Jun.
+
+Slugify is released under [MIT](./LICENSE.md) license.
 
 ## Credits
 
-Inspired by [Unidecode][5], [Transliteration][6] and [Slugger][7]. Data from [dzcpy/transliteration][6].
+Inspired by [Unidecode][4], [Transliteration][5] and [Slugger][6]. Data from [dzcpy/transliteration][6].
 
 [1]: https://www.ietf.org/rfc/rfc3986.txt
-[2]: https://hexdocs.pm/slugify/Slug.html
+[2]: https://hexdocs.pm/slugify
 [3]: https://hex.pm/packages/slugify
-[4]: https://github.com/jayjun/slugify/blob/master/LICENSE.md
-[5]: http://search.cpan.org/~sburke/Text-Unidecode-1.30/lib/Text/Unidecode.pm
-[6]: https://github.com/dzcpy/transliteration
-[7]: https://github.com/h4cc/slugger
+[4]: http://search.cpan.org/~sburke/Text-Unidecode-1.30/lib/Text/Unidecode.pm
+[5]: https://github.com/dzcpy/transliteration
+[6]: https://github.com/h4cc/slugger
diff --git a/mix.exs b/mix.exs
index df85570..807bee1 100644
--- a/mix.exs
+++ b/mix.exs
@@ -10,16 +10,10 @@ defmodule Slug.Mixfile do
       version: @version,
       elixir: "~> 1.8",
       name: "Slugify",
-      description: "Transform strings from any language to slugs for URLs, filenames or fun",
       deps: deps(),
       package: package(),
-      docs: [
-        source_ref: @version,
-        source_url: @repo_url,
-        main: "Slug",
-        api_reference: false,
-        extra_section: []
-      ]
+      docs: docs(),
+      preferred_cli_env: [docs: :docs]
     ]
   end
 
@@ -30,16 +24,31 @@ defmodule Slug.Mixfile do
   defp deps do
     [
       {:jason, "~> 1.0", only: [:dev, :test]},
-      {:ex_doc, "~> 0.22", only: :docs}
+      {:ex_doc, ">= 0.0.0", only: :docs, runtime: false}
     ]
   end
 
   defp package do
     [
-      files: ["lib/slug.ex", "priv", "mix.exs", "README.md"],
+      description: "Transform strings from any language into slugs.",
+      files: ["lib/slug.ex", "priv", "mix.exs", "README.md", "CHANGELOG.md", "LICENSE.md"],
       maintainers: ["Tan Jay Jun"],
       licenses: ["MIT"],
-      links: %{"GitHub" => @repo_url}
+      links: %{
+        "Changelog" => "https://hexdocs.pm/slugify/changelog.html",
+        "GitHub" => @repo_url
+      }
+    ]
+  end
+
+  defp docs do
+    [
+      extras: ["CHANGELOG.md", {:"LICENSE.md", [title: "License"]}, "README.md"],
+      source_ref: @version,
+      source_url: @repo_url,
+      main: "readme",
+      formatters: ["html"],
+      api_reference: false
     ]
   end
 end
diff --git a/mix.lock b/mix.lock
index 280adb2..1f36c8b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,9 +1,11 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], []},
   "earmark": {:hex, :earmark, "1.4.5", "62ffd3bd7722fb7a7b1ecd2419ea0b458c356e7168c1f5d65caf09b4fbdd13c8", [:mix], [], "hexpm", "b7d0e6263d83dc27141a523467799a685965bf8b13b6743413f19a7079843f4f"},
-  "ex_doc": {:hex, :ex_doc, "0.22.1", "9bb6d51508778193a4ea90fa16eac47f8b67934f33f8271d5e1edec2dc0eee4c", [:mix], [{:earmark, "~> 1.4.0", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "d957de1b75cb9f78d3ee17820733dc4460114d8b1e11f7ee4fd6546e69b1db60"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.13", "0c98163e7d04a15feb62000e1a891489feb29f3d10cb57d4f845c405852bbef8", [:mix], [], "hexpm", "d602c26af3a0af43d2f2645613f65841657ad6efc9f0e361c3b6c06b578214ba"},
+  "ex_doc": {:hex, :ex_doc, "0.24.2", "e4c26603830c1a2286dae45f4412a4d1980e1e89dc779fcd0181ed1d5a05c8d9", [:mix], [{:earmark_parser, "~> 1.4.0", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "e134e1d9e821b8d9e4244687fb2ace58d479b67b282de5158333b0d57c6fb7da"},
   "jason": {:hex, :jason, "1.2.1", "12b22825e22f468c02eb3e4b9985f3d0cb8dc40b9bd704730efa11abd2708c44", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "b659b8571deedf60f79c5a608e15414085fa141344e2716fbd6988a084b5f993"},
-  "makeup": {:hex, :makeup, "1.0.3", "e339e2f766d12e7260e6672dd4047405963c5ec99661abdc432e6ec67d29ef95", [:mix], [{:nimble_parsec, "~> 0.5", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "2e9b4996d11832947731f7608fed7ad2f9443011b3b479ae288011265cdd3dad"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.14.1", "4f0e96847c63c17841d42c08107405a005a2680eb9c7ccadfd757bd31dabccfb", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f2438b1a80eaec9ede832b5c41cd4f373b38fd7aa33e3b22d9db79e640cbde11"},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.6.0", "32111b3bf39137144abd7ba1cce0914533b2d16ef35e8abc5ec8be6122944263", [:mix], [], "hexpm", "27eac315a94909d4dc68bc07a4a83e06c8379237c5ea528a9acff4ca1c873c52"},
+  "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.15.1", "b5888c880d17d1cc3e598f05cdb5b5a91b7b17ac4eaf5f297cb697663a1094dd", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.1", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "db68c173234b07ab2a07f645a5acdc117b9f99d69ebf521821d89690ae6c6ec8"},
+  "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.1.0", "3a6fca1550363552e54c216debb6a9e95bd8d32348938e13de5eda962c0d7f89", [:mix], [], "hexpm", "08eb32d66b706e913ff748f11694b17981c0b04a33ef470e33e11b3d3ac8f54b"},
 }