This is what I ended up with in the first section:
Oh boy oh boy! Welcome to the world of 3D again, @SoundGoddess, and congratulations on your first model. Don’t forget to post your plane (when you get up to that) because I, for one, am interested in your progress!
how do I embed a model into the forum the way I saw others doing in the weekly challenge?
Use the long URL, rather than the short one they give you
Yeah! That’s the way to do it Well done. Hope you’ll share many more like this