This is the CKEditor 5 autoformatting feature.

Use Markdown syntax shortcodes to format content on the go. For example:

- Type `_` around some text to make it italics.
- Type `__` around some text to make it bold.
- Start a line with `1.` followed by a space to create an ordered list.
- Start a line with `-` followed by a space to create an unordered list.
- Start a line with `ˋˋˋ` to create a code block.