Mkdocs-include-markdown-plugin

New features:

- New option [`trailing-newlines`](https://github.com/mondeja/mkdocs-include-markdown-plugin/tree/1859d0008da744666343a0da0c1bcf8e408858f8#include-markdown_trailing-newlines) for both directives to strip trailing newlines from content to include.
- Both directives accept now recursive `**` wildcard globbing to match against subdirectories including multiple files.

Enhancements:

- String arguments `filename`, `start`, `end` and `exclude` now accept double quotes `"` in values escaping them with `\"`.

Bug fixes:

- Fixed offset application not skipped in codeblocks at nested Markdown blocks.
- Fixed incorrect output skipping relative URL rewritings in indented codeblocks.

Enhancements:

- Optimize migrating from `pathlib` to `os.path`.
- Some tiny performance optimizations processing text.

Enhancements:

- Warn if `end` or `start` arguments are not detected inside content to include.

Enhancements:

- Remove upper and lower limits for `heading-offset` argument.
- Accept negative arguments for `heading-offset` argument to decrease heading depth.

Fixed codeblocks added in wrong places rewriting relative URLs (regression produced by [v3.2.2](https://github.com/mondeja/mkdocs-include-markdown-plugin/releases/tag/v3.2.2)).

- Fixed rewriting of relative links inside codeblocks.
- Added French translation for documentation.