docs: Description fixes for State.set_animator()
docs: Description fixes for State.set_animator()

Distrotech/clutter,Distrotech/clutter,djdeath/clutter-multithreaded,GNOME/clutter,nobled/clutter,spatulasnout/clutter,kerrickstaley/clutter-vala,djdeath/clutter,kerrickstaley/clutter-vala,djdeath/clutter-android,heysion/clutter-clone,dlespiau/clutter,dlespiau/clutter,spatulasnout/clutter,GNOME/clutter,kerrickstaley/clutter-vala,ebassi/clutter,Distrotech/clutter,Distrotech/clutter,collects/clutter,ebassi/clutter,dlespiau/clutter,heysion/clutter-clone,ebassi/clutter,kerrickstaley/clutter-vala,heysion/clutter-clone,ebassi/clutter,nobled/clutter,heysion/clutter-clone,collects/clutter,GNOME/clutter,Distrotech/clutter,djdeath/clutter-android,djdeath/clutter,jigpu/clutter,spatulasnout/clutter,djdeath/clutter-android,jigpu/clutter,spatulasnout/clutter,jigpu/clutter,heysion/clutter-clone,djdeath/clutter,djdeath/clutter,nobled/clutter,GNOME/clutter,djdeath/clutter-android,collects/clutter,ebassi/clutter,djdeath/clutter-multithreaded,Distrotech/clutter,djdeath/clutter,collects/clutter,GNOME/clutter,collects/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android,jigpu/clutter,jigpu/clutter,djdeath/clutter,spatulasnout/clutter,djdeath/clutter-multithreaded,jigpu/clutter