[refactor] rename 'example' to 'demo', and add simple example_glium

docs/index.html

@@ -45,13 +45,13 @@
     </script>
 
     <!-- this is the JS generated by the `wasm-bindgen` CLI tool -->
-    <script src="example_wasm.js"></script>
+    <script src="demo_web.js"></script>
 
     <script>
         // We'll defer our execution until the wasm is ready to go.
         // Here we tell bindgen the path to the wasm file so it can start
         // initialization and return to us a promise when it's done.
-        wasm_bindgen("./example_wasm_bg.wasm")
+        wasm_bindgen("./demo_web_bg.wasm")
             .then(on_wasm_loaded)["catch"](console.error);
 
         function on_wasm_loaded() {