docs: add gaolizhou as a contributor (#679)

* docs: update README.md [skip ci]

* docs: create .all-contributorsrc [skip ci]

.all-contributorsrc

+{
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "contributors": [
+    {
+      "login": "gaolizhou",
+      "name": "gaolizhou",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/2884044?v=4",
+      "profile": "https://github.com/gaolizhou",
+      "contributions": [
+        "code"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "projectName": "milvus",
+  "projectOwner": "milvus-io",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "skipCi": true
+}

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)
@@ -56,6 +57,18 @@ To connect with other users and contributors, welcome to join our [Slack channel
 ## Contributors
 
 Below is a list of Milvus contributors. We greatly appreciate your contributions!
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://github.com/gaolizhou"><img src="https://avatars2.githubusercontent.com/u/2884044?v=4" width="100px;" alt="gaolizhou"/><br /><sub><b>gaolizhou</b></sub></a><br /><a href="https://github.com/milvus-io/milvus/commits?author=gaolizhou" title="Code">💻</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-enable -->
+<!-- prettier-ignore-end -->
+<!-- ALL-CONTRIBUTORS-LIST:END -->
 
 - [akihoni](https://github.com/akihoni) provided the CN version of README, and found a broken link in the doc.
 - [goodhamgupta](https://github.com/goodhamgupta) fixed a filename typo in the bootcamp doc.