updated small bug on WWW 18 workshop page
updated small bug on WWW 18 workshop page

usc-isi-i2/usc-isi-i2.github.io,usc-isi-i2/usc-isi-i2.github.io,usc-isi-i2/usc-isi-i2.github.io,usc-isi-i2/usc-isi-i2.github.io