chore(root):update readme

README.md

@@ -17,10 +17,10 @@ Please follow the guide doc to install the SDK on different platforms.
 ## Documentations
 
 * [API Doc](https://github.com/slightech/MYNT-EYE-S-SDK/releases): API reference, some guides and data spec.
-  * en: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708507/mynt-eye-s-sdk-apidoc-2.2.3-en.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708508/mynt-eye-s-sdk-apidoc-2.2.3-en.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](http://doc.myntai.com/resource/api/mynt-eye-s-sdk-apidoc-2.2.3-en/mynt-eye-s-sdk-apidoc-2.2.3-en/index.html)
-  * zh-Hans: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)]((https://github.com/slightech/MYNT-EYE-S-SDK/files/2708509/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708510/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](http://doc.myntai.com/resource/api/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans/index.html)
+  * en: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708507/mynt-eye-s-sdk-apidoc-2.2.3-en.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708508/mynt-eye-s-sdk-apidoc-2.2.3-en.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](http://doc.myntai.com/resource/api/mynt-eye-s-sdk-apidoc-2.2.3-en/mynt-eye-s-sdk-apidoc-2.2.3-en/index.html)
+  * zh-Hans: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708509/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK/files/2708510/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](http://doc.myntai.com/resource/api/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans/mynt-eye-s-sdk-apidoc-2.2.3-zh-Hans/index.html)
 * [Guide Doc](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/releases): How to install and start using the SDK.
-  * en: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)]((https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708524/mynt-eye-s-sdk-guide-2.2.3-en.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708525/mynt-eye-s-sdk-guide-2.2.3-en.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](https://slightech.github.io/MYNT-EYE-S-SDK-Guide/)
+  * en: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708524/mynt-eye-s-sdk-guide-2.2.3-en.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708525/mynt-eye-s-sdk-guide-2.2.3-en.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](https://slightech.github.io/MYNT-EYE-S-SDK-Guide/)
   * zh-Hans: [![](https://img.shields.io/badge/Download-PDF-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708528/mynt-eye-s-sdk-guide-2.2.3-zh-Hans.pdf) [![](https://img.shields.io/badge/Download-HTML-blue.svg?style=flat)](https://github.com/slightech/MYNT-EYE-S-SDK-Guide/files/2708529/mynt-eye-s-sdk-guide-2.2.3-zh-Hans.zip) [![](https://img.shields.io/badge/Online-HTML-blue.svg?style=flat)](http://doc.myntai.com/resource/sdk/mynt-eye-s-sdk-guide-2.2.3-zh-Hans/mynt-eye-s-sdk-guide-2.2.3-zh-Hans/index.html)
 
 > Supported languages: `en`, `zh-Hans`.