am 4b4bd1b3: am 607079d8: docs: SDK r20.0.3, Support Library r10 Release Notes plus some OCD cleanup to the ADT install steps

* commit '4b4bd1b3456096b5f92372230f4ccae225ddd5c4':
  docs: SDK r20.0.3, Support Library r10 Release Notes plus some OCD cleanup to the ADT install steps