Making sure there is a default volume increment set for the VideoCastControllerActicity
Update the documentation to include how the volume increment can be set on VideoCastControllerActivity
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Merge branch 'master' of https://github.com/googlecast/CastCompanionLibrary-android

# By anaddaf
# Via anaddaf
* 'master' of https://github.com/googlecast/CastCompanionLibrary-android:
  Update the documentation to include how the volume increment can be set on VideoCastControllerActivity
  Making sure there is a default volume increment set for the VideoCastControllerActicity