Markdown-to-mrkdwn

Added
- Added support for ordered lists (numbered lists with proper indentation)
- Improved code block handling to preserve language specification

Fixed
- Fixed Sphinx documentation issues
- Added proper toctree references in index.rst
- Enhanced documentation content with installation and usage examples
- Improved navigation between documentation pages
Added
- Added support for task lists (- [ ] task, - [x] task)
- Added support for Markdown tables
- Added support for strikethrough text conversion (~~text~~ to ~text~)

Fixed
- Fixed an issue where both bold and italic text was converted incorrectly [8](https://github.com/fla9ua/markdown_to_mrkdwn/issues/8)
- Added related test cases

Changed
- Rename Author

Fixed
- Fixed code block conversion issue [5](https://github.com/fla9ua/markdown_to_mrkdwn/issues/5)
- Added code block state tracking
- Skip conversion inside code blocks
- Added related test cases

Changed
- Bug fix [1](https://github.com/fla9ua/markdown_to_mrkdwn/issues/1)