Update Readme and ship new version

CHANGELOG.md

+## 4.7.2
+
+* MOAR README updates
+
+## 4.7.1
+
+* README fix
+
 ## 4.7.0
 
 * Expose Font Awesome 4.7.0 `woff` font asset. This was the smallest version of the font file that worked with Flutter. 

README.md

 # font_awesome_flutter
 
-The [Font Awesome](https://fontawesome.com) Icon pack available as set of Flutter Icons.
+The [Font Awesome](http://fontawesome.io/icons/) Icon pack available as set of Flutter Icons.
 
 ## Installation
 
@@ -11,7 +11,7 @@ This requires two steps:
 In the `dependencies:` section of your `pubspec.yaml`, add the following line:
 
 ```yaml
-  font_awesome_flutter: 4.7.0    
+  font_awesome_flutter: 4.7.2    
 ```
 
 ### Install the font asset

pubspec.yaml

@@ -2,7 +2,7 @@ name: font_awesome_flutter
 author: Brian Egan <brian@brianegan.com>
 description: The Font Awesome Icon pack available as Flutter Icons
 homepage: https://github.com/brianegan/font_awesome_flutter
-version: 4.7.1
+version: 4.7.2
 
 dependencies:
   flutter: