Fix README.md (#689)

* [skip ci]#668 - Update badge of README

* Fix README.md

README.md

 
-<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)<!-- ALL-CONTRIBUTORS-BADGE:END -->
 ![Milvuslogo](https://github.com/milvus-io/docs/blob/master/assets/milvus_logo.png)
 
 [![Slack](https://img.shields.io/badge/Join-Slack-orange)](https://join.slack.com/t/milvusio/shared_invite/enQtNzY1OTQ0NDI3NjMzLWNmYmM1NmNjOTQ5MGI5NDhhYmRhMGU5M2NhNzhhMDMzY2MzNDdlYjM5ODQ5MmE3ODFlYzU3YjJkNmVlNDQ2ZTk)
@@ -9,6 +8,8 @@
 ![Release](https://img.shields.io/badge/release-v0.6.0-yellowgreen)
 ![Release_date](https://img.shields.io/badge/release%20date-December-yellowgreen)
 [![codecov](https://codecov.io/gh/milvus-io/milvus/branch/master/graph/badge.svg)](https://codecov.io/gh/milvus-io/milvus)
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [中文版](README_CN.md) | [日本語版](README_JP.md)