google-assistant-sdk/CHANGELOG: add missing contributions

Change-Id: I1f4c8f8bbbf4adb1ed021589f247592cef1a465e

Author: proppy

google-assistant-sdk/CHANGELOG.rst

@@ -4,9 +4,11 @@ Changelog
 0.3.0
 -----
 - Move grpc bindings to the `google-assistant-grpc <https://pypi.python.org/pypi/google-assistant-grpc>`_ package.
-- Moved reference sample to ``googlesamples.assistant.grpc.pushtotalk`` with `updated instructions <https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk/googlesamples/assistant/grpc>`_.
+- Moved reference grpc sample to ``googlesamples.assistant.grpc.pushtotalk`` with `updated instructions <https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk/googlesamples/assistant/grpc>`_.
 - Replaced ``auth_helpers`` with ``google-oauthlibtool``:
   - Follow the `updated instructions <https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-grpc#authorization>_ to generate and use new credentials.
+- Add ``--once`` flag to pushtotalk grpc sample (@r-clancy).
+- Fix typo in IFTTT handling in pushtotalk grpc sample (@kadeve).
 - Add `google-assistant-library sample <https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk/googlesamples/assistant/library>`_.
 
 0.2.1