update images and people on HT project page
update images and people on HT project 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