Fixed broken link to API reference

README.rst

@@ -216,7 +216,7 @@ Learn More
 -  `API Reference`_
 
 .. _Python Developer Center: http://azure.microsoft.com/en-us/develop/python/
-.. _API Reference: https://docs.microsoft.com/en-us/python/api/overview/azure/storage/clientlibrary?view=azure-python
+.. _API Reference: https://docs.microsoft.com/en-us/python/api/overview/azure/storage/client?view=azure-python
 .. _readthedocs: https://azure-storage.readthedocs.io/
 .. _here: https://github.com/Azure/azure-storage-python/archive/master.zip
 .. _create an account: https://account.windowsazure.com/signup