docs: Clean up the wording of a couple of comments
docs: Clean up the wording of a couple of comments

GNOME/clutter,djdeath/clutter,collects/clutter,jigpu/clutter,Distrotech/clutter,jigpu/clutter,jigpu/clutter,collects/clutter,Distrotech/clutter,ebassi/clutter,djdeath/clutter,Distrotech/clutter,djdeath/clutter-android,djdeath/clutter-android,djdeath/clutter-android,jigpu/clutter,GNOME/clutter,collects/clutter,GNOME/clutter,djdeath/clutter,Distrotech/clutter,Distrotech/clutter,ebassi/clutter,heysion/clutter-clone,GNOME/clutter,collects/clutter,ebassi/clutter,ebassi/clutter,heysion/clutter-clone,djdeath/clutter,GNOME/clutter,jigpu/clutter,jigpu/clutter,heysion/clutter-clone,djdeath/clutter-android,heysion/clutter-clone,heysion/clutter-clone,ebassi/clutter,Distrotech/clutter,djdeath/clutter,collects/clutter,djdeath/clutter-android,djdeath/clutter