build: Fix MSVC 201x build documentation
build: Fix MSVC 201x build documentation

The vsX/VSX should not be vs9/VS9, but vs10/VS10 here, so that we talk
about the right Visual Studio version here.

GNOME/gdk-pixbuf,GNOME/gdk-pixbuf,GNOME/gdk-pixbuf,GNOME/gdk-pixbuf