Fixed the right link
Fixed the right link


Former-commit-id: 901842a2dc6ef2df76dea40f2f6dcf1a876bd242
Former-commit-id: c8656e4da62ec39e8457b8a41f6302dba07a7176
Former-commit-id: 3ac1065fbbf9c12fabdd1596524eef2b60efd973
StanfordHCI/cs247,StanfordHCI/cs247,StanfordHCI/cs247