am d7170b2a: am 65e62f4f: docs: new web apps dev guides

Merge commit 'd7170b2a68dc9b9df6de9b063d25ff0ec20c86c4' into gingerbread-plus-aosp

* commit 'd7170b2a68dc9b9df6de9b063d25ff0ec20c86c4':
  docs: new web apps dev guides