update list of components using pugixml in Docs/license.md
update list of components using pugixml in Docs/license.md

Signed-off-by: Kenji Brameld <07c09d5cb417177de45be426d5e46c6b9cffb88e@gmail.com>

paroj/ogre,paroj/ogre,OGRECave/ogre,OGRECave/ogre,OGRECave/ogre,paroj/ogre,OGRECave/ogre,OGRECave/ogre,paroj/ogre,paroj/ogre