hi. it is easy. you make something for this contest, ( write or draw or both)
make a post of it, ( with a link to THIS post )
You just copy paste the "hadder". like on any other page when you copy the "address".
does it make sense? Or check out how others do it here on steemit.
Also i recommend you look up some videos on how to do well on steemit.
introduction post would be more important than posting crap from the net.
:-)