Update .gitignore
Update .gitignore

Hi,

after running configure with "Enable developer documentation" set to
"yes" git status warns about two new untracked files:

        doc/doxygen/tooldev.doxygen
        doc/doxygen/tools.doxygen

Below is a small patch.

HTH,
  Dawid

Gnurou/weston,udoprog/weston,jonnylamb/weston,Fantu/compositor-spice,udoprog/weston,sir-murray/weston,krezovic/weston,Tarnyko/weston-xdg_surface_present,kwm81/weston,xorgy/weston,giucam/weston,sir-murray/weston,xorgy/weston,jonnylamb/weston,Tarnyko/weston-xdg_surface_present,Fantu/compositor-spice,giucam/weston,kwm81/weston,Gnurou/weston,krezovic/weston,Fantu/compositor-spice