how to earth chrome sockets?

I have bought new chrome power sockets for my home to replace the standard plastic sockets, there is two earth cables going in to the earth terminal on the plastic socket but on the chrome socket there is two earth terminals, one either side of the socket. do i put the two earth cables in the one side of the socket then run a short earth cable sleeved to the other side? as you can tell i am a total novice,thanks for your help in advance.

Lisa
November 2009