Update README.rst

Author: Ali Afshar

README.rst

@@ -5,7 +5,7 @@ The goal of this project is to make it really simple and Pythonic
 to use Google Cloud Platform services.
 
 .. image:: https://travis-ci.org/GoogleCloudPlatform/gcloud-python.svg?branch=master
-:target: https://travis-ci.org/GoogleCloudPlatform/gcloud-python
+    :target: https://travis-ci.org/GoogleCloudPlatform/gcloud-python
 
 Quickstart
 ----------