Remove dummy WASM demo page (#29)

Author: streamcode9

index.html

@@ -12,7 +12,6 @@
       <a href="/index.html" aria-current="page">Home</a>
       <a href="/pages/blog.html">Blog</a>
       <a href="/pages/categories.html">Categories</a>
-      <a href="/pages/dummy.html">WASM Demo</a>
     </nav>
   </header>
   <main>
@@ -60,7 +59,6 @@ <h2>Misc</h2>
       <ul>
         <li><a href="/pages/blog.html">Latest posts</a></li>
         <li><a href="/pages/categories.html">Categories</a></li>
-        <li><a href="/pages/dummy.html">Dummy page</a></li>
       </ul>
     </section>
   </main>