Bumps the package version 0.1.0 -> 0.1.1 and writes the 0.1.1
CHANGELOG section for the documentation-only release: ADRs
unpublished from hexdocs, five broken published-docs links fixed,
badge row and Documentation index added, the stale no-CI claim
corrected, and mix docs now zero-warning. The README install
snippet already tracks the ~> 0.1 series, so it is unchanged.

Refs: sui-o9x