Correct typo in region selector docs

(cherry picked from commit 9a11c57846ab2e18faad4572d8f4655b617d9260)

worldedit-core/src/main/java/com/sk89q/worldedit/regions/RegionSelector.java

@@ -93,7 +93,7 @@ public interface RegionSelector {
     void explainSecondarySelection(Actor actor, LocalSession session, BlockVector3 position);
 
     /**
-     * The the player information about the region's changes. This may resend
+     * Tell the player information about the region's changes. This may resend
      * all the defining region information if needed.
      *
      * @param actor the actor