docs: added style guide & dev tools

Author: dickidarmawansaputra

README.md

@@ -6,3 +6,9 @@ Learn vue 3 from basic.
 - [Learn Vue Basic](https://github.com/dickidarmawansaputra/learn-vue-basic)
 - [Learn Vue Router](https://github.com/dickidarmawansaputra/learn-vue-router)
 - [Learn Vue Pinia]()
+
+## Style Guide & Tools
+
+- [Vue Style Guide](https://v2.vuejs.org/v2/style-guide/?redirect=true)
+- [Vue ESLint](https://eslint.vuejs.org)
+- [Vue DevTools](https://devtools.vuejs.org)