message: Add missed breaking change to 0.22 release notes
  As reported in
diff: This change breaks all existing custom themes, so a theme created for v0.21 or earlier will not work in v0.22.
  See [internal-docs/custom-themes.md](https://github.com/TypeStrong/typedoc/blob/v0.22.0/internal-docs/custom-themes.md) for documentation on how to create a custom theme in v0.22.
  - Removed the minimal theme that has been mostly broken for a long time.
  +- Changed the default `entryPointStrategy` from `expand` to `resolve`.
  ### Features
  