Quick cheat sheet:

# heading 1
## heading 2
###### heading 6
<!-- comment -->
*italic*
_italic_
**bold**
__bold__
~~strikethrough~~
`monospace`
```
Code block
```
```lang
Code block with language identifier for syntax highlighting
```

Renders as:

heading 1

heading 2

heading 6

<!-- comment --> italic
italic
bold
bold
strikethrough
monospace

Code block

Code block with language identifier for syntax highlighting

My client incorrectly renders the comment, so Lemmy may only support an arbitrary subset of markdown. Also special characters can be prefixed with a backslash to write them literally. For *verbs* and #hashtags