Support extended formatting syntax: https://www.markdownguide.org/extended-syntax/ - sup `X^2^` - sub `H~2~O` - highlighted text `==very important words==` - underlined text via `<ins>` (https://stackoverflow.com/a/47354053)
Support extended formatting syntax: https://www.markdownguide.org/extended-syntax/
X^2^H~2~O==very important words==<ins>(https://stackoverflow.com/a/47354053)