* Markdown task list improvements
- Remove `.ui` class and wrappers to prevent fomantic from messing with it.
- Change rendered HTML to match GitHub.
- Add custom styling for the checkboxes.
* fix unittest
Co-authored-by: Lauris BH <[email protected]>
Co-authored-by: techknowlogick <[email protected]>
* Add test
Signed-off-by: Andrew Thornton <[email protected]>
* Restore checkbox rendering and prevent poor sanitization of spans
Signed-off-by: Andrew Thornton <[email protected]>
* Also fix preview context
Signed-off-by: Andrew Thornton <[email protected]>
* Also fix preview context
Signed-off-by: Andrew Thornton <[email protected]>
* restructure markup & markdown to prepare for multiple markup languages support
* adjust some functions between markdown and markup
* fix tests
* improve the comments
