update documentation to pull from the jsDelivr CDN

定位包含所列 React、jQuery、Opal 和 Hyperstack script 标签的文档页面，然后检查其 CDN URL 的维护方式。更新引用的脚本以使用 jsDelivr，并验证文档中的页面仍能加载所有必需的依赖项。

<!-- React and JQuery -->
<script crossorigin src="https://unpkg.com/react@16.8.6/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16.8.6/umd/react-dom.production.min.js"></script>
<script crossorigin src="https://unpkg.com/create-react-class@15.6.3/create-react-class.min.js"></script>
<script crossorigin src="https://unpkg.com/react-router@4.3.1/umd/react-router.min.js"></script>
<script crossorigin src="https://unpkg.com/react-router-dom@4.3.1/umd/react-router-dom.min.js"></script>
<script crossorigin src="https://unpkg.com/history@4.10.1/umd/history.min.js"></script>
<script crossorigin src="https://unpkg.com/react_ujs@2.6.0/react_ujs/dist/react_ujs.js"></script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>

<!-- Opal -->
<script src="https://cdn.jsdelivr.net/gh/hyperstack-org/hyperstack-js@master/dist/opal.min.js"></script>

<!-- Hyperstack -->
<script src="https://cdn.jsdelivr.net/gh/hyperstack-org/hyperstack-js@0.1/dist/hyperstack.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/hyperstack-org/hyperstack-js@0.1/dist/hyper-router.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/hyperstack-org/hyperstack-js@0.1/dist/hyperstack-compiler.min.js"></script>
<script src="https://raw.githubusercontent.com/hyperstack-org/hyperstack/edge/ruby/hyper-component/lib/hyperstack/ext/component/element.rb" type='text/ruby'></script>