docs: update Node.js version in README and add integrity attributes to scripts in global.html (semgrep)

Author: harshithad0703

README.md

@@ -8,7 +8,7 @@ Contentstack is a headless CMS with an API-first approach. It is a CMS that deve
 
 ### Prerequisite
 
-- Nodejs, v8+
+- Nodejs, v20+
 - MongoDB, v3.6 or higher
 - You should have the data synced through [Contentstack DataSync](https://www.contentstack.com/docs/guide/synchronization/contentstack-datasync) 
 

docs/global.html

@@ -4,8 +4,8 @@
     <meta charset="utf-8">
     <title>JSDoc: Global</title>
 
-    <script src="https://cdn.jsdelivr.net/gh/google/code-prettify@master/loader/run_prettify.js"> </script>
-    <script src="scripts/prettify/lang-css.js"> </script>
+    <script src="https://cdn.jsdelivr.net/gh/google/code-prettify@master/loader/run_prettify.js" integrity="coVkbqHWSAomtcPWb3XtrGNqZkue+Eu9X7YxIgZbtmg=%" crossorigin="anonymous"> </script>
+    <script src="scripts/prettify/lang-css.js" integrity="m2rEgwM7AlcnFOtNN+4ZkYXEEAjrKz9GoAqw685qIMU=%" crossorigin="anonymous"> </script>
     <!--[if lt IE 9]>
       <script src="//html5shiv.googlecode.com/svn/trunk/html5.js" integrity="sha384-hDHlUtmnjnJimeAhT+DpLqjLdp8vFgSFHhZO1zq2EtqpwFsNM7H5cpSUYqT1Uh2E" crossorigin="anonymous"></script>
     <![endif]-->