chore: browser compatibility table link (#13187)

Updated Browser Compatibility reference. The previous currently returns HTTP 404.

README.md

@@ -45,7 +45,7 @@ Vue (pronounced `/vjuː/`, like view) is a **progressive framework** for buildin
 
 #### Browser Compatibility
 
-Vue.js supports all browsers that are [ES5-compliant](https://kangax.github.io/compat-table/es5/) (IE8 and below are not supported).
+Vue.js supports all browsers that are [ES5-compliant](https://compat-table.github.io/compat-table/es5/) (IE8 and below are not supported).
 
 ## Ecosystem