Updating README (#25)

* Updating README

Author: salqadri

README.md

@@ -13,8 +13,8 @@
 
 [Firebase](https://firebase.google.com) provides the tools and infrastructure
 you need to develop apps, grow your user base, and earn money. The Firebase
-Admin Python SDK enables server-side (backend) Python developers to integrate
-Firebase into their services and applications. Currently this SDK provides
+Admin Python SDK enables access to Firebase services from privileged environments
+(such as servers or cloud) in Python. Currently this SDK provides
 Firebase custom authentication support.
 
 For more information, visit the
@@ -40,7 +40,7 @@ requests, code review feedback, and also pull requests.
 ## Supported Python Versions
 
 We support Python 2.7 and Python 3.3+. Firebase Admin Python SDK is also tested
-on PyPy and Google App Engine environments.
+on PyPy and [Google App Engine](https://cloud.google.com/appengine/) environments.
 
 
 ## Documentation