More people are needed for my new tournament:let's play

Perhaps you should create a link to your tourney ^^

how do I do that

http://www.chess.com/tournament/lets-play9

Go to your tournament page, grab the URL and post it in here.

Example:

http://www.chess.com/tournament/1st-chesscom-tournament-1801

Or you can use the "chain" button and paste the URL as a link behind some text.

Example

Ah, you worked it out ^^