add references

Author: tienbku

README.md

@@ -7,6 +7,9 @@ For more detail, please visit:
 
 > [Deploying/Hosting Node.js app on Heroku with MySQL database](https://bezkoder.com/deploy-node-js-app-heroku-cleardb-mysql/)
 
+Security:
+> [Node.js Express: JWT example | Token Based Authentication & Authorization](https://bezkoder.com/node-js-jwt-authentication-mysql/)
+
 Associations:
 > [Sequelize Associations: One-to-Many Relationship example](https://bezkoder.com/sequelize-associate-one-to-many/)
 
@@ -17,7 +20,11 @@ Fullstack:
 
 > [Vue.js + Node.js + Express + MongoDB example](https://bezkoder.com/vue-node-express-mongodb-mevn-crud/)
 
-> [Angular + Node.js + Express + MySQL example](https://bezkoder.com/angular-node-express-mysql/)
+> [Angular 8 + Node.js + Express + MySQL example](https://bezkoder.com/angular-node-express-mysql/)
+
+> [Angular 10 + Node.js + Express + MySQL example](https://bezkoder.com/angular-10-node-js-express-mysql/)
+
+> [Angular 11 + Node.js Express + MySQL example](https://bezkoder.com/angular-11-node-js-express-mysql/)
 
 > [React + Node.js + Express + MySQL example](https://bezkoder.com/react-node-express-mysql/)