am 8d0e37f5: Merge "docs: revise platform intro" into froyo

Merge commit '8d0e37f5b142623b41b78ce5d19b4b650d53eb7f' into froyo-plus-aosp

* commit '8d0e37f5b142623b41b78ce5d19b4b650d53eb7f':
  docs: revise platform intro