Update changelog and version

Author: bryanjos

.gitignore

@@ -3,3 +3,4 @@
 erl_crash.dump
 *.ez
 /doc
+.elixir_ls

CHANGELOG.md

@@ -1,3 +1,18 @@
-## [1.0.0]
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## [1.1.0] - 2018-02-26
+
 ### Added
-- First release
+
+* `Diff.annotated_patch/3`
+
+## [1.0.0] - 2016-04-04
+
+### Added
+
+* First release

mix.exs

@@ -4,7 +4,7 @@ defmodule Diff.Mixfile do
   def project do
     [app: :diff,
      name: "Diff",
-     version: "1.0.0",
+     version: "1.1.0",
      elixir: "~> 1.0",
      description: description,
      package: package,