Misc doc changes

List of changes:
- Use common source url
- Remove comment
- Remove deprecated badge
- Add Changelog link

README.md

@@ -1,6 +1,12 @@
 # Confex
 
-[![Deps Status](https://beta.hexfaktor.org/badge/all/github/Nebo15/confex.svg)](https://beta.hexfaktor.org/github/Nebo15/confex) [![Inline docs](http://inch-ci.org/github/nebo15/confex.svg)](http://inch-ci.org/github/nebo15/confex) [![Hex.pm Downloads](https://img.shields.io/hexpm/dw/confex.svg?maxAge=3600)](https://hex.pm/packages/confex) [![Latest Version](https://img.shields.io/hexpm/v/confex.svg?maxAge=3600)](https://hex.pm/packages/confex) [![License](https://img.shields.io/hexpm/l/confex.svg?maxAge=3600)](https://hex.pm/packages/confex) [![Build Status](https://travis-ci.org/Nebo15/confex.svg?branch=master)](https://travis-ci.org/Nebo15/confex) [![Coverage Status](https://coveralls.io/repos/github/Nebo15/confex/badge.svg?branch=master)](https://coveralls.io/github/Nebo15/confex?branch=master) [![Ebert](https://ebertapp.io/github/Nebo15/confex.svg)](https://ebertapp.io/github/Nebo15/confex)
+[![Inline docs](http://inch-ci.org/github/nebo15/confex.svg)](http://inch-ci.org/github/nebo15/confex)
+[![Hex.pm Downloads](https://img.shields.io/hexpm/dw/confex.svg?maxAge=3600)](https://hex.pm/packages/confex)
+[![Latest Version](https://img.shields.io/hexpm/v/confex.svg?maxAge=3600)](https://hex.pm/packages/confex)
+[![License](https://img.shields.io/hexpm/l/confex.svg?maxAge=3600)](https://hex.pm/packages/confex)
+[![Build Status](https://travis-ci.org/Nebo15/confex.svg?branch=master)](https://travis-ci.org/Nebo15/confex)
+[![Coverage Status](https://coveralls.io/repos/github/Nebo15/confex/badge.svg?branch=master)](https://coveralls.io/github/Nebo15/confex?branch=master)
+[![Ebert](https://ebertapp.io/github/Nebo15/confex.svg)](https://ebertapp.io/github/Nebo15/confex)
 
 Confex simplifies reading configuration at run-time with adapter-based system for fetch values from any source.
 It's inspired by Phoenix `{:system, value}` definition for HTTP port and have no external dependencies.

mix.exs

@@ -1,6 +1,7 @@
 defmodule Confex.Mixfile do
   use Mix.Project
 
+  @source_url "https://github.com/Nebo15/confex"
   @version "3.5.0"
 
   def project do
@@ -17,34 +18,17 @@ defmodule Confex.Mixfile do
       deps: deps(),
       test_coverage: [tool: ExCoveralls],
       preferred_cli_env: [coveralls: :test],
-      docs: [source_ref: "v#\{@version\}", main: "readme", extras: ["README.md"]]
+      docs: [source_url: @source_url, source_ref: "v#\{@version\}", main: "readme", extras: ["README.md"]]
     ]
   end
 
-  # Configuration for the OTP application
-  #
-  # Type "mix help compile.app" for more information
   def application do
     [applications: []]
   end
 
-  # Specifies which paths to compile per environment.
   defp elixirc_paths(:test), do: ["lib", "test/support"]
   defp elixirc_paths(_), do: ["lib"]
 
-  # Dependencies can be Hex packages:
-  #
-  #   {:mydep, "~> 0.3.0"}
-  #
-  # Or git/path repositories:
-  #
-  #   {:mydep, git: "https://github.com/elixir-lang/mydep.git", tag: "0.1.0"}
-  #
-  # To depend on another app inside the umbrella:
-  #
-  #   {:myapp, in_umbrella: true}
-  #
-  # Type "mix help deps" for more examples and options
   defp deps do
     [
       {:ex_doc, "~> 0.19", only: :dev},
@@ -62,13 +46,12 @@ defmodule Confex.Mixfile do
     """
   end
 
-  # Settings for publishing in Hex package manager:
   defp package do
     [
       contributors: ["Nebo #15"],
       maintainers: ["Nebo #15"],
       licenses: ["LISENSE.md"],
-      links: %{github: "https://github.com/Nebo15/confex"},
+      links: %{Changelog: "#{@source_url}/blob/master/CHANGELOG.md}", GitHub: @source_url},
       files: ~w(lib LICENSE.md mix.exs README.md)
     ]
   end