How To Post A Link?

[Maine farmer]

I suppose I could spend an hour or so figuring it out, but it would be easier to get an explanation from someone.

 

Suppose I see something interesting, say homemade sterling engines on you tube, and I think "I bet some of the people at hypography would enjoy this."  How would I post a link in a hypography forum?

[sanctus]

When you hit reply, like in replying to this post, you have all these built-in things B (for bold), I (for italic) the 9th is the one you want it looks like a metal chain and a plus sign in the bottom right corner.