am df3a7e79: am 3c0c0da9: am f90178d0: docs only. fix some typos.

Merge commit 'df3a7e797738587873f1269b2989c516ec302395' into eclair-mr2-plus-aosp

* commit 'df3a7e797738587873f1269b2989c516ec302395':
  docs only.