chore: readme [ci skip]

Author: yyx990803

README.md

@@ -1,25 +1,8 @@
 # vuejs/core [![npm](https://img.shields.io/npm/v/vue.svg)](https://www.npmjs.com/package/vue) [![build status](https://github.com/vuejs/core/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/vuejs/core/actions/workflows/ci.yml)
 
-This is the repository for Vue 3.x.
+## Getting Started
 
-## Quickstart
-
-- Via CDN: `<script src="https://unpkg.com/vue@3"></script>`
-- Try in the browser on [StackBlitz](https://vite.new/vue)
-- Scaffold via [create-vue](https://github.com/vuejs/create-vue):
-
-  ```bash
-  # npm
-  npm init vue@3
-  # yarn
-  yarn create vue
-  ```
-
-## Changes from Vue 2
-
-Please consult the [Migration Guide](http://v3-migration.vuejs.org/).
-
-Also note: Vue 3 does not support IE11 ([RFC](https://github.com/vuejs/rfcs/blob/master/active-rfcs/0038-vue3-ie11-support.md) | [Discussion](https://github.com/vuejs/rfcs/discussions/296)).
+Please follow the documentation at [vuejs.org](https://vuejs.org/)!
 
 ## Sponsors
 
@@ -30,3 +13,31 @@ Vue.js is an MIT-licensed open source project with its ongoing development made
     <img alt="sponsors" src="https://sponsors.vuejs.org/sponsors.svg">
   </a>
 </p>
+
+## Questions
+
+For questions and support please use [the official forum](https://forum.vuejs.org) or [community chat](https://chat.vuejs.org/). The issue list of this repo is **exclusively** for bug reports and feature requests.
+
+## Issues
+
+Please make sure to respect issue requirements and use [the new issue helper](https://new-issue.vuejs.org/) when opening an issue. Issues not conforming to the guidelines may be closed immediately.
+
+## Stay In Touch
+
+- [Twitter](https://twitter.com/vuejs)
+- [Blog](https://blog.vuejs.org/)
+- [Job Board](https://vuejobs.com/?ref=vuejs)
+
+## Contribution
+
+Please make sure to read the [Contributing Guide](https://github.com/vuejs/core/blob/main/.github/contributing.md) before making a pull request. If you have a Vue-related project/component/tool, add it with a pull request to [this curated list](https://github.com/vuejs/awesome-vue)!
+
+Thank you to all the people who already contributed to Vue!
+
+<a href="https://github.com/vuejs/vue/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
+
+## License
+
+[MIT](https://opensource.org/licenses/MIT)
+
+Copyright (c) 2013-present, Yuxi (Evan) You