update documentation to pull from the jsDelivr CDN

Xác định trang tài liệu chứa các thẻ script React, jQuery, Opal và Hyperstack được liệt kê, sau đó xem xét cách các URL CDN của trang đó được duy trì. Cập nhật các script được tham chiếu để sử dụng jsDelivr và xác minh rằng trang được tài liệu hóa vẫn tải tất cả các dependency bắt buộc.

<!-- 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>