Update faq.
Update faq.

Alexx-G/openface,nmabhi/Webface,xinfang/face-recognize,francisleunggie/openface,cmusatyalab/openface,cmusatyalab/openface,francisleunggie/openface,xinfang/face-recognize,Alexx-G/openface,xinfang/face-recognize,nmabhi/Webface,cmusatyalab/openface,francisleunggie/openface,nmabhi/Webface,Alexx-G/openface,Alexx-G/openface,nmabhi/Webface