Update ArcballControls.js

Author: Mugen87

examples/jsm/controls/ArcballControls.js

@@ -96,7 +96,7 @@ const _EPS = 0.000001;
  * Arcball controls allow the camera to be controlled by a virtual trackball with full touch support and advanced navigation functionality.
  * Cursor/finger positions and movements are mapped over a virtual trackball surface represented by a gizmo and mapped in intuitive and
  * consistent camera movements. Dragging cursor/fingers will cause camera to orbit around the center of the trackball in a conservative
- * way (returning to the starting point will make the camera to return to its starting orientation).
+ * way (returning to the starting point will make the camera return to its starting orientation).
  *
  * In addition to supporting pan, zoom and pinch gestures, Arcball controls provide focus< functionality with a double click/tap for intuitively
  * moving the object's point of interest in the center of the virtual trackball. Focus allows a much better inspection and navigation in complex