final updates to homepage for labs
final updates to homepage for labs


Former-commit-id: 79a55d67bf07f390b05d2ad40f06b54150670a13
Former-commit-id: dcc4a2f95fe079da9f8963ec136641e43bc4d9ea
Former-commit-id: 94ef596fd8a0fb28c7680f3cb8b22337175ae1fd
StanfordHCI/cs247,StanfordHCI/cs247,StanfordHCI/cs247