Go to Layouts and type in "bulletin layouts"
From there you should be able to find a simple one and edit it to your liking
I chose this one
Once you got your layout ready, just click the little blue button
After that it'll turn into an eye like this
When it's in this eye mode, it'll be in preview mode or soemthing.
paste your code in the text box and it'll update when you click the eye again to the layout you wanted! It's that easy!
Sorry for a little less flare on this blog but I'm literally rewriting this after spending all day writing it because SpaceHey had a brainfart and killed it for some reason lmao....
Anyway, have fun!