minor readme update

Author: Peter

README.md

@@ -14,8 +14,8 @@ the future as well.
 Features
 ---------------
 
- * 100% Java and 100% Open Source (Apache 2 License)
- * Memory efficient
+ * 100% Java and 100% Open Source
+ * Memory efficient and fast
  * A small library (~3MB)
  * Works on the [desktop](http://karussell.files.wordpress.com/2012/06/graphhopper.png), 
    [from the web](https://github.com/graphhopper/graphhopper-web)