Clang-format-docs

What's Changed
* Fix cpp code and usage in README by hofbi in https://github.com/finsberg/clang-format-docs/pull/6
* Use existing types over files regex by hofbi in https://github.com/finsberg/clang-format-docs/pull/7
* Update workflows by finsberg in https://github.com/finsberg/clang-format-docs/pull/9

New Contributors
* hofbi made their first contribution in https://github.com/finsberg/clang-format-docs/pull/6

**Full Changelog**: https://github.com/finsberg/clang-format-docs/compare/v0.3.0...v0.3.1

What's Changed
* Support code blocks fenced with "cpp" by imphil in https://github.com/finsberg/clang-format-docs/pull/3

New Contributors
* imphil made their first contribution in https://github.com/finsberg/clang-format-docs/pull/3

**Full Changelog**: https://github.com/finsberg/clang-format-docs/compare/v0.2.2...v0.3.0