Updated section on installing dependencies

Signed-off-by: Conrad Gomes <conrad.s.j.gomes@gmail.com>
Removing the images with Screenshot names as they were renamed

Signed-off-by: Conrad Gomes <conrad.s.j.gomes@gmail.com>
Committing section on cloning the repository for OpenWrt

Signed-off-by: Conrad Gomes <conrad.s.j.gomes@gmail.com>