message: chore: update readme status
diff: # vue-router-next [![CircleCI](https://circleci.com/gh/vuejs/vue-router-next.svg?style=svg)](https://circleci.com/gh/vuejs/vue-router-next)
  -## Status: Alpha
  +## Status: Beta
  The current codebase has most of the existing features on Vue Router v3.x and is usable. It supports all the [merged RFCs](https://github.com/vuejs/rfcs/pulls?q=is%3Apr+is%3Amerged+label%3Arouter).
  