Update DrawModes.html

There was a typo in the vertex list for THREE.TrianglesDrawMode.

P.S.: Options are only relevant for a BufferGeometry, but the example uses a Geometry...

docs/api/en/constants/DrawModes.html

@@ -26,7 +26,7 @@
 			THREE.TrianglesDrawMode
 		</code>
 		<p>
-			This is the default, and results in every three consecutive vertices (v0, v1, v2), (v2, v3, v5), ...
+			This is the default, and results in every three consecutive vertices (v0, v1, v2), (v3, v4, v5), ...
 			being interpreted as a separate triangle. <br />
 			If the number of vertices is not a multiple of 3, excess vertices are ignored.
 		</p>