README: update pypi badge target

Author: Vadim Rutkovsky

README.rst

@@ -2,7 +2,7 @@ Containers Testing Framework CLI
 ================================
 
 .. image:: https://badge.fury.io/py/ctf-cli.svg
-    :target: https://badge.fury.io/py/ctf-cli.svg
+    :target: https://pypi.python.org/pypi/ctf-cli
 
 .. image:: https://travis-ci.org/Containers-Testing-Framework/ctf-cli.svg?branch=master
     :target: https://travis-ci.org/Containers-Testing-Framework/ctf-cli