Update README.md with support portal URL

Author: aonemd

README.md

@@ -7,6 +7,8 @@ This package lets you trigger events to your client and query the state of your
 
 In order to use this library, you need to have a free account on <http://pusher.com>. After registering, you will need the application credentials for your app.
 
+For reporting issues, bugs, and feature requests, please feel free to open a pull request or open an issue. If you do not receive a timely response, feel free to check our [support portal](https://docs.bird.com/pusher).
+
 ## Supported Platforms
 
 * Python - supports Python versions 2.7, 3.6 and above