Updating the README (#137)

* Updating the branding
* Description of the product
* Link to samples, docs, license, and contributor guideline
* Add beta warning

Author: jamesdaniels

README.md

@@ -1,12 +1,15 @@
-# firebase-functions
+# Firebase SDK for Cloud Functions
 
-The `firebase-functions` package provides an SDK for defining Firebase Functions.
+The `firebase-functions` package provides an SDK for defining Cloud Functions for Firebase.
 
-## Installation
+Cloud Functions is a hosted, private, and scalable Node.js environment where you can run JavaScript code. The Firebase SDK for Cloud Functions integrates the Firebase platform by letting you write code that responds to events and invokes functionality exposed by other Firebase features.
 
-In your Firebase project's `functions` directory, run:
+_This is a Beta release of Google Cloud Functions. This API might be changed in backward-incompatible ways and is not subject to any SLA or deprecation policy._
 
-    npm install firebase-functions
+
+## Learn more
+
+Learn more about the Firebase SDK for Cloud Functions in the [Firebase documentation](https://firebase.google.com/docs/functions/) or [check out our samples](https://github.com/firebase/functions-samples).
 
 ## Usage
 
@@ -24,3 +27,11 @@ exports.newPost = functions.database
     }
   });
 ```
+
+## Contributing
+
+To contribute a change, [check out the contributing guide](CONTRIBUTING.md).
+
+## License
+
+© Google, 2017. Licensed under [The MIT License](LICENSE).