fix(ascii-art): correct controller script tag path (drop ../)

Amit Haridas

src/ascii-generator.html

@@ -368,6 +368,6 @@
       <button class="btn btn-primary" id="btn-insert">Insert to Editor</button>
     </div>
 
-    <script src="../renderer/ascii-controller.js"></script>
+    <script src="renderer/ascii-controller.js"></script>
   </body>
 </html>