Updating the formatting codes for youtube

[vaud]

I noticed (late I know) that we can now embed youtube videos and I copied the formatting from another post.

Checking in the formatting help - it seems to be missing?:
https://www.pistonheads.com/gassing/formatting.htm

Are there any other cool tricks that have been added?

[Ben Lowden]

That is a valid point. We were testing the water initially but it seems to be well used now, so I'll ask the team to add in.

No other cool hidden features though just yet I'm afraid!