Editing "share" button video location

Hello Everyone,

I'm new to the forum, trying to get up to speed with html 5 video. I've gotten things working fairly well on a couple test pages, but I can't figure out hot to edit the info/address that appears when you click on the "share" button.

I know this is a real noob question, but I'd sure appreciate some insight!

Thanks,

timmdrumm