docs: rename/bump 10.7.0 release notes to 11.0.0

Recently a few drivers have grown OpenGL 4+ support so we might as
well go all the way to... 11 ;-)

v2: Don't forget to update the version file (Ilia)

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2 files changed