animaition -> animation (#13827)

Also changed `range` to `frame_range`,

doc/lua_api.md

@@ -7496,8 +7496,8 @@ child will follow movement and rotation of that bone.
     * `frame_blend`: number, default: `0.0`
     * `frame_loop`: If `true`, animation will loop. If false, it will play once
        * default: `true`
-* `get_animation()`: returns current animation parameters set by `set_animaition`:
-    * `range`, `frame_speed`, `frame_blend`, `frame_loop`.
+* `get_animation()`: returns current animation parameters set by `set_animation`:
+    * `frame_range`, `frame_speed`, `frame_blend`, `frame_loop`.
 * `set_animation_frame_speed(frame_speed)`
     * Sets the frame speed of the object's animation
     * Unlike `set_animation`, this will not restart the animation