Render-Engine uses Markdown2.

If you have the adminoitions in your markdown_extras, you can use RST-style admonitions.

These are not like GitHub Style Admonitions.

For more information:

• https://docutils.sourceforge.io/docs/ref/rst/directives.html#admonitions
• https://github.com/trentm/python-markdown2/wiki/admonitions