change to readme.txt to explain new feature

Author: enricob

readme.txt

@@ -15,8 +15,10 @@ The widget also supports multiple instances just in case you're running a multi-
 
 Follow the project on GitHub too!  http://github.com/enricob/gitpress
 
+*NEW*: Now you can render the widget as a Dr. Nic GitHub badge. Unfortunately, only one badge can be rendered at a time.
+
 == Installation ==
 
 1. Upload `gitpress.php` to the `/wp-content/plugins/` directory
 1. Activate the plugin through the 'Plugins' menu in WordPress
-1. Use the widgets admin page to add GitPress widgets to your theme!
+1. Use the widgets admin page to add GitPress widgets to your theme!