Update README.md

Author: Fmstrat

README.md

@@ -2,7 +2,8 @@
 Shorten is an add-on app for ownCloud that enables one-click URL shortening. It's features include:
 - Automatic replacement of the public share URL with the shortened URL
 - No need to create a seperate "Shorten" URL
-- Ability to completely hide the ownCloud server by proxying shortened requests through another server
+- Internal shortner or goo.gl support
+- Ability to completely hide the ownCloud server with the internall shortener by proxying shortened requests through another server
     - Note: While normal shares will never expose the ownCloud URL, password protected files will as the password display screen must be supplied to the user.
 
 ## Installation