message: Bumped react version to 16.5
diff: <html>
  <head>
  <title>Welcome to React</title>
  - <script src="https://unpkg.com/react@15/dist/react.js"></script>
  - <script src="https://unpkg.com/react-dom@15/dist/react-dom.js"></script>
  + <script src="https://unpkg.com/react@16.5.0/umd/react.development.js"></script>
  + <script src="https://unpkg.com/react-dom@16.5.0/umd/react-dom.development.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.23/browser.js"></script>
  <!-- dx charts -->
  