Awww you're truly an awesome friend!! What a nice thought!
Well as almost everyone has suggested, invite both of them on something like for shopping, maybe for movies, or something else. Just give them time to know each other and if their liking develops from then on then it's great, but if even then they don't seem to click with each other then I guess you should leave it there because after all it really depends on whether or not they'll get along well.
From your previous post, it seems like he's interested. Well at least the ball is rolling... All you need to figure out is if she likes him or not