Merge pull request #1584 from zhaoqin-github/notice

Add no longer support notice

Author: zhaoqin-github

README.rst

@@ -3,6 +3,11 @@ f5-common-python
 
 |Build Status| |Docs Build Status| |slack badge|
 
+NO LONGER UNDER ACTIVE DEVELOPMENT
+----------------------------------
+NOTICE: This project is no longer under active development. F5 may still use
+internally for other project(s) but is no longer maintaining it publicly.
+
 Introduction
 ------------
 This project implements an SDK for the iControl® REST interface for BIG-IP®.
@@ -224,4 +229,4 @@ project.
 
 .. |coveralls| image:: https://coveralls.io/repos/github/F5Networks/f5-common-python/badge.svg
     :target: https://coveralls.io/github/F5Networks/f5-common-python
-    :alt: Coveralls
+    :alt: Coveralls