Example JS Embedding

References :     docs.fileformat article on how to embed js file inside html doc   

                                 https://www.hairizuan.com/custom-js-snippets-in-google-sites/

Key snippet  in html doc to either place the javascript there or to reference it via src: is shown below :

 <script  src ="https://storage.googleapis.com/scripts_66/alert_buttons_demo.js"></script>