Rename libtess.js example files

wip/libtess-example.html

@@ -14,9 +14,9 @@
       }
     </style>
 
-    <script src="./Simple Triangulation_files/libtess.min.js.download"></script>
-    <script src="./Simple Triangulation_files/webgl_draw.js.download"></script>
-    <script src="./Simple Triangulation_files/triangulate.js.download"></script>
+    <script src="./lib/libtess.min.js"></script>
+    <script src="./src/webgl-draw.js"></script>
+    <script src="./src/triangulate.js"></script>
     <script>
       /* global draw, initArrayBuffer, initWebGL, triangulate */