You can can used restructured text by setting the content type to text/restructured. This is my recommend way of posting. It will automatically put your text into paragraphs (given that you put two enters between your paragraphs) and turn URLs that start with http:// into hyper links (ie. typeing https://joey101.net will end up looking like https://joey101.net).
If you want to have syntax highlighting, you can do something like this:
.. code-block::XML
<p>Hi</p>
<p>Bye</p>