Update README.md to have `RotateCCW`
Update README.md to have `RotateCCW`

seanwoodward/IBAnimatable,alexiosdev/IBAnimatable,IBAnimatable/IBAnimatable,JakeLin/IBAnimatable,seanwoodward/IBAnimatable,IBAnimatable/IBAnimatable,JakeLin/IBAnimatable,IBAnimatable/IBAnimatable,alexiosdev/IBAnimatable