README: update sponsors

[CI SKIP]

Author: unknwon

README.md

@@ -124,9 +124,9 @@ There are 5 ways to install Gogs:
 ## Acknowledgments
 
 - Thanks [Egon Elbre](https://twitter.com/egonelbre) for designing logo.
-- Thanks [Crowdin](https://crowdin.com/project/gogs) for providing open source translation plan.
-- Thanks [DigitalOcean](https://www.digitalocean.com) for hosting home and demo sites.
-- Thanks [KeyCDN](https://www.keycdn.com/) and [QiNiu](http://www.qiniu.com/) for providing CDN service.
+- Thanks [Crowdin](https://crowdin.com/project/gogs) for sponsoring open source translation plan.
+- Thanks [DigitalOcean](https://www.digitalocean.com) for sponsoring VPS service.
+- Thanks [KeyCDN](https://www.keycdn.com/) for sponsoring CDN service.
 
 ## Contributors
 

README_ZH.md

@@ -95,7 +95,7 @@ Gogs 的目标是打造一个最简单、最快速和最轻松的方式搭建自
 - 感谢 [Egon Elbre](https://twitter.com/egonelbre) 设计的 Logo。
 - 感谢 [Crowdin](https://crowdin.com/project/gogs) 提供免费的开源项目本地化支持。
 - 感谢 [DigitalOcean](https://www.digitalocean.com) 提供主站和体验站点的服务器赞助。
-- 感谢 [KeyCDN](https://www.keycdn.com/) 和 [七牛云存储](http://www.qiniu.com/) 提供 CDN 服务赞助。
+- 感谢 [KeyCDN](https://www.keycdn.com/) 提供 CDN 服务赞助。
 
 ## 贡献成员