am 4ec5140b: Merge "docs: Update the auto checklist and cleanup supporting docs that checklist item references. Also add information about alpha/beta Play Store channel. Reference the design spec for the 6-tap specification." into mnc-preview-docs

* commit '4ec5140be35df2e9c49558d330df06fa985f7bc9':
  docs: Update the auto checklist and cleanup supporting docs that checklist item references. Also add information about alpha/beta Play Store channel. Reference the design spec for the 6-tap specification.