Fix link to the comparison demo.
Fix link to the comparison demo.

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