Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to b8f308c3685781640f8543600b56e04c298560d7
  - Update css file name in conf.py
    
    ribbon.css is the correct name of the css file.
    
    Issue-ID: CIMAN-376
    Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
    Change-Id: Ib4444487de90b373ee692e894db4e85e22d4bf7f
    
1 file changed