diff --git a/.gitignore b/.gitignore
index 0d123ee..02eca6b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,8 @@ erl_crash.dump
 # Also ignore archive artifacts (built via "mix archive.build").
 *.ez
 
-.elixir_ls
\ No newline at end of file
+# Ignore package tarball (built via "mix hex.build").
+gen_state_machine-*.tar
+
+# Temporary files for e.g. tests
+/tmp
diff --git a/README.md b/README.md
index de10b79..fe05d18 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,12 @@
-[![Elixir CI](https://github.com/ericentin/gen_state_machine/workflows/Elixir%20CI/badge.svg)](https://github.com/ericentin/gen_state_machine/actions?query=workflow%3A%22Elixir+CI%22)
-
 # GenStateMachine
 
+[![Elixir CI](https://github.com/ericentin/gen_state_machine/workflows/Elixir%20CI/badge.svg)](https://github.com/ericentin/gen_state_machine/actions?query=workflow%3A%22Elixir+CI%22)
+[![Module Version](https://img.shields.io/hexpm/v/gen_state_machine.svg)](https://hex.pm/packages/gen_state_machine)
+[![Hex Docs](https://img.shields.io/badge/hex-docs-lightgreen.svg)](https://hexdocs.pm/gen_state_machine/)
+[![Total Download](https://img.shields.io/hexpm/dt/gen_state_machine.svg)](https://hex.pm/packages/gen_state_machine)
+[![License](https://img.shields.io/hexpm/l/gen_state_machine.svg)](https://github.com/ericentin/gen_state_machine/blob/master/LICENSE)
+[![Last Updated](https://img.shields.io/github/last-commit/ericentin/gen_state_machine.svg)](https://github.com/ericentin/gen_state_machine/commits/master)
+
 An idiomatic Elixir wrapper for `gen_statem` in OTP 20 (and above).
 
 **Full documentation is available [here](https://hexdocs.pm/gen_state_machine).**
@@ -24,23 +29,37 @@ added to `Logger`.
 
 ## Installation
 
-  1. Add `gen_state_machine` to your list of dependencies in `mix.exs`:
+Add `:gen_state_machine` to your list of dependencies in `mix.exs`:
 
-  ```elixir
-  def deps do
-    [{:gen_state_machine, "~> 3.0"}]
-  end
-  ```
+```elixir
+def deps do
+  [{:gen_state_machine, "~> 3.0"}]
+end
+```
 
-  2. Ensure `gen_state_machine` is added to your applications:
+Ensure `:gen_state_machine` is added to your applications:
 
-  ```elixir
-  def application do
-    [applications: [:gen_state_machine]]
-  end
-  ```
+```elixir
+def application do
+  [applications: [:gen_state_machine]]
+end
+```
 
 ## Special Thanks
 
 I would like to give special thanks to @fishcakez and @michalmuskala, who both
 provided invaluable feedback on this library!
+
+## License
+
+Copyright (c) 2016 Eric Entin
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0)
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/lib/gen_state_machine.ex b/lib/gen_state_machine.ex
index 9bcf0e1..e932fe7 100644
--- a/lib/gen_state_machine.ex
+++ b/lib/gen_state_machine.ex
@@ -420,7 +420,7 @@ defmodule GenStateMachine do
 
   @doc """
   Whenever a `GenStateMachine` in callback mode `:handle_event_function` (the
-  default) receives a call, cast, or normal process messsage, this callback will
+  default) receives a call, cast, or normal process message, this callback will
   be invoked.
 
   This function can optionally throw a result to return it.
diff --git a/mix.exs b/mix.exs
index 2461ddf..8762e26 100644
--- a/mix.exs
+++ b/mix.exs
@@ -12,6 +12,7 @@ end
 defmodule GenStateMachine.Mixfile do
   use Mix.Project
 
+  @source_url "https://github.com/ericentin/gen_state_machine"
   @version "3.0.0"
 
   def project do
@@ -24,11 +25,12 @@ defmodule GenStateMachine.Mixfile do
       deps: deps(),
       description: description(),
       package: package(),
-      source_url: "https://github.com/ericentin/gen_state_machine",
       docs: [
-        main: "GenStateMachine",
-        extras: ["README.md"],
-        source_ref: "v#{@version}"
+        main: "readme",
+        extras: ["CHANGELOG.md", "README.md"],
+        source_url: @source_url,
+        source_ref: "v#{@version}",
+        api_reference: false
       ]
     ]
   end
@@ -53,11 +55,12 @@ defmodule GenStateMachine.Mixfile do
 
   defp package do
     [
-      files: ["lib", "mix.exs", "README.md", "LICENSE"],
+      files: ["lib", "mix.exs", "README.md", "CHANGELOG.md", "LICENSE"],
       maintainers: ["Eric Entin"],
-      licenses: ["Apache 2.0"],
+      licenses: ["Apache-2.0"],
       links: %{
-        "GitHub" => "https://github.com/ericentin/gen_state_machine"
+        "Changelog" => "https://hexdocs.pm/gen_state_machine/changelog.html",
+        "GitHub" => @source_url
       }
     ]
   end