Oh hey, You found my test page! Good on you, now piss off.
Lore Maintainer, this is a cheat sheet for YOU!
But what does the funny thing do?
At the top of the edit window you'll see a cheat sheet of things you can use, however they're counter-intuitive if you know basic HTML, which works here by the way.
Pressing enter at the end of your line to start a new one doesn't do what You think it will, You need to use br inside of <> to break the line.
Help I do not understand something, what if I break the page?
First of all? Don't. Secondly, you have a button right next to Save changes that lets you see the preview of formatting. Use it, or create your own user page and use it as a test bed as I do.
Cheat Sheet
i inside of <> starts italics while /i inside of <> ends them
b inside of <> starts bold text while /b inside of <> ends it
And the rest is in the help page, use it mate.