Docs: fixed formatting for setLaunchBounds()

Some changes to phrasing and punctuation to meet API Council guidelines.
Bug: 111149822
Test: make ds-docs and visual inspection of HTML

Change-Id: I2f7586cee3c1d0b41286f98cd0598cb6c62eafd6
(cherry picked from commit fcefd69c5bc2629c43b53b59a1a8a171f69b89ef)
1 file changed