Added missing full stop

docs/examples/controls/OrbitControls.html

@@ -14,7 +14,7 @@
       Orbit controls allow the camera to orbit around a target.<br>
 
       To use this, as with all files in the /examples directory, you will have to
-      include the file seperately in your HTML
+      include the file seperately in your HTML.
 
 		</div>