Goofing around to figure out how this works. (Hmm. Can I pin posts? I feel like I can't, LOL.)
(Should do I do double-space between paragraphs? I'll find out! :D)
Okay.

This is the first heading

Hello!

This is the second heading

Hello x2!
And I bring... a list:
* Thing one
* Thing Two
Or alternately (which one works?):
*Thing
*New thing

This is the third/last heading

Let's figure out links:
Mastodon
And now for a blockquote:
> I'm sure this looks stunning.
I will now take my applause, please and thank you.