google-assistant-library: update download link

Change-Id: I98dc761f2ed9dc6b06a049ed128724bd0e59fc03

Author: proppy

google-assistant-library/README.rst

@@ -25,10 +25,9 @@ Supported configuration
 Installing
 ----------
 
-- Download the latest ``linux_arm7l`` wheel for the ``google_assistant_library`` from the `GitHub releases page`_.
-- Install the package and its dependencies using pip_::
+- Install the latest ``linux_arm7l`` wheel for the ``google_assistant_library`` package and its dependencies using pip_::
 
-    pip install --upgrade google_assistant_library-0.0.2-py2.py3-none-linux_armv7l.whl
+    pip install --upgrade https://github.com/googlesamples/assistant-sdk-python/releases/download/0.3.0/google_assistant_library-0.0.2-py2.py3-none-linux_armv7l.whl
 
 Authorization
 -------------