You can find the guide to remove the LCD here, all you have to do is stop after you remove the glass though. Follow up until step 29 and do not continue to step 30. At this point, you will just need to attach the new piece of glass to the housing with double sided 3M tape, the heavy duty kind. I is also best of you clean off the residue left behind by the last piece of glass, it will prevent the glass from detaching in the future.
hope this Helps