Mkdocs-include-markdown-plugin

Bug fixes:

- Wrap `start` and `end` delimiters contents by single quotes in comments to show them better.

New features:

- Allow to configure globally custom tags strings to open and close directives (112).

Bug fixes:

- Fixed incompatibility between `trailing-newlines` and `comments` arguments of `include-markdown` directive.

Bug fixes:

- Fixed nested inclusions showing incorrect warning messages.
- Fixed error skipping relative URLs rewriting in indented codeblocks using Windows newlines.

Enhancements:

- Allow to pass string arguments wrapped by single quotes `'` escaping them with `\'`.
- Show errors if `filename`, `end`, `start` or `exclude` arguments are empty.
- Show error rather than raising an exception if a file to be included is not found.
- Show error rather than raising an exception if a parsed boolean value is not valid.
- Improved warning messages adding affected line number and directive.

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.