Update git submodules

* Update docs/submodules/vvp/documentation.git from branch 'master'
  to e1e4e93ba2d570070058aaec64d69ef3123f7303
  - [VVP] Documented usage of black code formatter
    
    Issue-ID: VVP-203
    
    Change-Id: Ifc5a6a94d7f25e729746ab210e8e7854fb5890ba
    Signed-off-by: Lovett, Trevor <trevor.lovett@att.com>
    
1 file changed