diff --git a/.formatter.exs b/.formatter.exs
index 939d646..7c68d77 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -2,3 +2,4 @@
 [
   inputs: ["{mix,.formatter}.exs", "{config,lib,test,samples,mix}/**/*.{ex,exs}"]
 ]
+
diff --git a/.gitignore b/.gitignore
index 6e1db0f..6923f88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,17 +1,26 @@
 # 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
 
 # If the VM crashes, it generates a dump, let's ignore it too.
 erl_crash.dump
 
 # Also ignore archive artifacts (built via "mix archive.build").
 *.ez
+
+# Ignore package tarball (built via "mix hex.build").
+deep_merge-*.tar
+
+# Temporary files for e.g. tests.
+/tmp/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5202dcb..60f8791 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +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).
+
 ## 1.0.0 (2019-03-26)
 
 * Added the possibility to `@derive [DeepMerge.Resolver]` if you want your custom structs to also easily be deep_mergeable
diff --git a/README.md b/README.md
index fe6d8ee..5d29108 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# DeepMerge [![Hex Version](https://img.shields.io/hexpm/v/deep_merge.svg)](https://hex.pm/packages/deep_merge) [![docs](https://img.shields.io/badge/docs-hexpm-blue.svg)](https://hexdocs.pm/deep_merge/) [![CI](https://github.com/PragTob/deep_merge/actions/workflows/main.yml/badge.svg)](https://github.com/PragTob/deep_merge/actions/workflows/main.yml) [![Coverage Status](https://coveralls.io/repos/github/PragTob/deep_merge/badge.svg?branch=master)](https://coveralls.io/github/PragTob/deep_merge?branch=master) [![Inline docs](http://inch-ci.org/github/PragTob/deep_merge.svg?branch=master)](http://inch-ci.org/github/PragTob/deep_merge)
+# DeepMerge [![Hex Version](https://img.shields.io/hexpm/v/deep_merge.svg)](https://hex.pm/packages/deep_merge) [![docs](https://img.shields.io/badge/docs-hexpm-blue.svg)](https://hexdocs.pm/deep_merge/) [![CI](https://github.com/PragTob/deep_merge/actions/workflows/main.yml/badge.svg)](https://github.com/PragTob/deep_merge/actions/workflows/main.yml) [![Coverage Status](https://coveralls.io/repos/github/PragTob/deep_merge/badge.svg?branch=master)](https://coveralls.io/github/PragTob/deep_merge?branch=master) [![Total Download](https://img.shields.io/hexpm/dt/deep_merge.svg)](https://hex.pm/packages/deep_merge) [![License](https://img.shields.io/hexpm/l/deep_merge.svg)](https://github.com/PragTob/deep_merge/blob/main/LICENSE)
 
 Provides functionality for "deep merging" maps and keyword lists in elixir, which is if during merging both values at the same key are maps/keyword lists merge them recursively. This is done via a protocol so can be extended for your own structs/data types if needbe.
 
@@ -24,13 +24,15 @@ I wanted this to be a feature of Elixir itself, however the proposal [was reject
 
 ## Installation
 
-Add `deep_merge` to your list of dependencies in `mix.exs`:
+Add `:deep_merge` to your list of dependencies in `mix.exs`:
 
-  ```elixir
-  def deps do
-    [{:deep_merge, "~> 1.0"}]
-  end
-  ```
+```elixir
+def deps do
+  [
+    {:deep_merge, "~> 1.0"}
+  ]
+end
+```
 
 ## General Usage - deep_merge/2
 
@@ -50,7 +52,7 @@ It is worth noting that structs are not deeply merged - not with each other and
 
 What is merged and how is defined by implementing the `DeepMerge.Resolver` protocol. This library implements it for `Map`, `List` and falls back to `Any` (where the right hand side value/override is taken).
 
-If you want your own struct to be deeply merged you can simply `@derive` the protocole:
+If you want your own struct to be deeply merged you can simply `@derive` the protocol:
 
 ```elixir
 defmodule Derived do
@@ -98,7 +100,7 @@ iex> DeepMerge.deep_merge(%{a: %{b: 1}, c: [d: 1]},
 %{a: %{b: 1, z: 5}, c: [x: 0]}
 ```
 
-This function is called for a given merge conflict with the key where it occured and the two conflicting values. Whatever value is returned in this function is inserted at that point in the structure - unless `DeepMerge.continue_deep_merge` is returned in which case the deep merge continues as normal.
+This function is called for a given merge conflict with the key where it occurred and the two conflicting values. Whatever value is returned in this function is inserted at that point in the structure - unless `DeepMerge.continue_deep_merge` is returned in which case the deep merge continues as normal.
 
 When would you want to use this versus a protocol? The best use case I can think of is when you want to alter behavior for which a protocol is already implemented or if you care about specific keys.
 
@@ -111,7 +113,7 @@ Well not necessarily, no. There are [very simple implementations for maps that u
 There are subtle things that can be missed there though (and I missed the first time around):
 
 * the most simple implementation also merges structs which is not always what you want
-* For keyword lists on the other hand you gotta be careful that you don't accidentally merge keyword lists with lists as that's [currently possible](https://github.com/elixir-lang/elixir/issues/5395)
+* for keyword lists on the other hand you gotta be careful that you don't accidentally merge keyword lists with lists as that's [currently possible](https://github.com/elixir-lang/elixir/issues/5395)
 * you might want to further adopt the implementation, in [benchee](https://github.com/bencheeorg/benchee) we have 2 custom implementations of the protocol due to our needs
 
 This library takes care of those problems and will take care of further problems/edge cases should they appear so you can focus on your business logic.
@@ -120,10 +122,17 @@ At the same time it offers extension mechanisms through protocols and a function
 
 ## Performance
 
-You can check out [a benchmark and its results](https://github.com/PragTob/deep_merge/blob/master/benches/bench/deep_merge.exs).
+You can check out [a benchmark and its results](https://github.com/PragTob/deep_merge/blob/main/benches/bench/deep_merge.exs).
 
 The TLDR; is this: In the sample it is about 30 times slower than `Map.merge/2` - however, less than twice as slow as calling `Map.merge/3` with simple overriding behaviour (same behaviour as `Map.merge/2`). This is because `Map.merge/2` is highly optimized, but we need to do much more than the `Map.merge/3` sample in the benchmark so I think it's a very passable result. We're still talking about a couple of μs.
 
 ## Considered feature-complete
 
 Unless you come with great feature ideas of course ;) So if you come here and there are no recent commits, don't worry - there are no known bugs or whatever. It's a small little library that does its job.
+
+## Copyright and License
+
+Copyright (c) 2016 Tobias Pfeiffer
+
+This library is MIT licensed. See the
+[LICENSE](https://github.com/PragTob/deep_merge/blob/main/LICENSE.txt) for details.
diff --git a/mix.exs b/mix.exs
index ed8da0e..59a2b82 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,6 +1,7 @@
 defmodule DeepMerge.Mixfile do
   use Mix.Project
 
+  @source_url "https://github.com/PragTob/deep_merge"
   @version "1.0.0"
 
   def project do
@@ -12,37 +13,33 @@ defmodule DeepMerge.Mixfile do
       start_permanent: Mix.env() == :prod,
       elixirc_paths: elixirc_paths(Mix.env()),
       deps: deps(),
-      docs: [source_ref: @version],
+      docs: docs(),
       test_coverage: [tool: ExCoveralls],
-      preferred_cli_env: [
-        coveralls: :test,
-        "coveralls.detail": :test,
-        "coveralls.post": :test,
-        "coveralls.html": :test,
-        "coveralls.travis": :test
-      ],
       package: package(),
       name: "deep_merge",
-      source_url: "https://github.com/PragTob/deep_merge",
+      description: """
+      Deep (recursive) merging for maps, keyword lists and whatever else
+      you may want via implementing a simple protocol.
+      """,
       dialyzer: [
         flags: [:error_handling, :underspecs],
         ignore_warnings: ".dialyzer_ignore.exs",
         list_unused_filters: true
       ],
-      description: """
-      Deep (recursive) merging for maps, keyword lists and whatever else
-      you may want via implementing a simple protocol.
-      """
+      preferred_cli_env: [
+        docs: :docs,
+        coveralls: :test,
+        "coveralls.detail": :test,
+        "coveralls.post": :test,
+        "coveralls.html": :test,
+        "coveralls.travis": :test
+      ]
     ]
   end
 
-  # Specifies which paths to compile per environment.
   defp elixirc_paths(:test), do: ["lib", "test/support"]
   defp elixirc_paths(_), do: ["lib"]
 
-  # Configuration for the OTP application
-  #
-  # Type "mix help compile.app" for more information
   def application do
     []
   end
@@ -50,20 +47,29 @@ defmodule DeepMerge.Mixfile do
   defp deps do
     [
       {:credo, "~> 1.0", only: :dev},
-      {:ex_doc, "~> 0.11", only: :dev},
-      {:earmark, "~> 1.2", only: :dev},
+      {:ex_doc, ">= 0.0.0", only: :docs, runtime: false},
       {:excoveralls, "~> 0.7", only: :test},
       {:inch_ex, "~> 2.0", only: :docs},
       {:dialyxir, "~> 1.0", only: [:dev], runtime: false}
     ]
   end
 
+  defp docs do
+    [
+      extras: ["CHANGELOG.md", "README.md"],
+      main: "readme",
+      source_url: @source_url,
+      source_ref: @version
+    ]
+  end
+
   defp package do
     [
       maintainers: ["Tobias Pfeiffer"],
       licenses: ["MIT"],
       links: %{
-        "github" => "https://github.com/PragTob/deep_merge"
+        "Changelog" => "https://hexdocs.pm/deep_merge/changelog.html",
+        "GitHub" => @source_url
       }
     ]
   end