docs: Updates to multi-window and related docs. am: 4d93a21980 am: 8263d6c0a3
am: c88130c572

* commit 'c88130c5724227b3ba7ef0b5ef4476fedabca650':
  docs: Updates to multi-window and related docs.

Change-Id: I308c988e3a93737a478f9f2445b512e86f218643