fixed path to react-cytoscape.js

Author: kinimesi

demo.html

@@ -8,7 +8,7 @@
   <script src="node_modules/react-dom/umd/react-dom.development.js"></script>
   <script src="node_modules/cytoscape/dist/cytoscape.min.js"></script>
   <script src="node_modules/prop-types/prop-types.js"></script>
-  <script src="react-cytoscape.js"></script>
+  <script src="dist/react-cytoscape.js"></script>
 
   <title>react-cytoscapejs demo</title>
 
@@ -93,4 +93,4 @@ <h1>react-cytoscapejs demo</h1>
   </script>
 </body>
 
-</html>
+</html>