am 6978d04b: am 9d95873d: Merge "docs: SDK r21.1 - fix download links, Issue 8193979" into jb-mr1-dev

# Via Android (Google) Code Review (1) and others
* commit '6978d04b444824dea6579e3352cf5cad7ffc7c6f':
  docs: SDK r21.1 - fix download links, Issue 8193979