Merge "cherrypick from mnc-docs docs: Updated APK Signature Scheme v2 doc." into mnc-io-docs am: 24c2969312
am: c34dee0c99

* commit 'c34dee0c99bbc1d21bd557e095d4f88761a4245f':
  cherrypick from mnc-docs docs: Updated APK Signature Scheme v2 doc.

Change-Id: If46bff14d2a8a461eda04b4e1d40bee06b10984c