Removed references to pusher-rest and added note about 0.8 branch

Removing old notice about pusher-rest and 1.0.0 branch

Author: jpatel531

README.md

@@ -2,7 +2,7 @@
 
 ![Travis-CI](https://travis-ci.org/pusher/pusher-http-python.svg)
 
-The new Python library for interacting with the Pusher HTTP API. This version, 1.x.x, is a major breaking change from versions <= 0.8. 
+The new Python library for interacting with the Pusher HTTP API. This version, 1.x.x, is a major breaking change from versions <= 0.8. Version 0.8 can be found on the [0.8 branch](https://github.com/pusher/pusher-http-python/tree/0.8).
 
 This package lets you trigger events to your client and query the state of your Pusher channels. When used with a server, you can validate Pusher webhooks and authenticate private- or presence-channels.
 
@@ -44,8 +44,6 @@ normally `easy_install` or `pip`. For example:
 pip install pusher
 ```
 
-**Note: When 1.0 is reached `pusher-rest` will no longer be updated. Instead `pusher` should be used**
-
 Getting started
 ---------------