Add changelog

Author: bryanjos

CHANGELOG.md

@@ -0,0 +1,17 @@
+# 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).
+
+## [0.1.0] - 2017-09-17
+### Added
+
+- FFI modules for the following web APIs:
+  - console
+  - document
+  - history
+  - JSON
+  - localStorage
+  - object
+  - window

README.md

@@ -2,6 +2,9 @@
 
 An ElixirScript FFI Library for Web APIs
 
+For detailed documentation on the APIs exposed, check
+[MDN's Web API documentation](https://developer.mozilla.org/en-US/docs/Web/API)
+
 ## Installation
 
 If [available in Hex](https://hex.pm/docs/publish), the package can be installed