Examples: Tweak misc_controls_drag.html.

examples/misc_controls_drag.html

@@ -19,7 +19,7 @@
 
 		<div id="info">
 			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - drag controls<br />
-			Use "Shift+Click" to add/remove objects to a group. This mode enables group dragging.
+			Use "Shift+Click" to add objects to a group. This mode enables group dragging.
 		</div>
 
 		<script type="module">