docs: add the list of companies using Vue/Nuxt

Author: cloydlau

README.md

@@ -25,6 +25,7 @@
   - [Blog Posts](#blog-posts)
   - [Courses](#courses)
   - [Documentaries](#documentaries)
+- [Companies Using Vue.js](#companies-using-vuejs)
 - [Projects Using Vue.js](#projects-using-vuejs)
   - [Open Source](#open-source)
   - [Commercial Products](#commercial-products)
@@ -733,6 +734,10 @@
 
 - [Vue.js: The Documentary](https://www.youtube.com/watch?v=OrxmtDw4pVI) by Honeypot (Feb 2020)
 
+## Companies Using Vue.js
+
+- [Companies Using Vue/Nuxt](https://github.com/cloydlau/companies-using-vue)
+
 ## Projects Using Vue.js
 
 ### Open Source