Update README.md, remove unused URLs (theme-next#727)

* Update README

* Delete link

* Update

README.md

@@ -19,7 +19,7 @@
 ## Live Preview
 
 * :heart_decoration: Muse scheme: [LEAFERx](https://leaferx.online) | [Alex LEE](http://saili.science) | [Miaia](https://11.tt)
-* :six_pointed_star: Mist scheme: [Jeff](https://blog.zzbd.org) | [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
+* :six_pointed_star: Mist scheme: [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
 * :pisces: Pisces scheme: [Vi](http://notes.iissnan.com) | [Acris](https://acris.me) | [Jiaxi He](http://jiaxi.io)
 * :gemini: Gemini scheme: [Ivan.Nginx](https://almostover.ru) | [Raincal](https://raincal.com) | [Dandy](https://dandyxu.me)
 
@@ -110,7 +110,7 @@ Contribution is welcome, feel free to open an issue and fork. Waiting for your p
 
 [stack-url]: https://stackoverflow.com/questions/tagged/theme-next
 [contributing-url]: https://github.com/theme-next/hexo-theme-next/blob/master/.github/CONTRIBUTING.md
-[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3Afeature-request+sort%3Areactions-%2B1-desc
+[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3A%22Feature+Request%22+sort%3Areactions-%2B1-desc
 [issues-url]: https://github.com/theme-next/hexo-theme-next/issues
 
 [gitter-url]: https://gitter.im/theme-next

docs/ru/README.md

@@ -19,7 +19,7 @@
 ## Демо
 
 * :heart_decoration: Muse тема: [LEAFERx](https://leaferx.online) | [Alex LEE](http://saili.science) | [Miaia](https://11.tt)
-* :six_pointed_star: Mist тема: [Jeff](https://blog.zzbd.org) | [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
+* :six_pointed_star: Mist тема: [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
 * :pisces: Pisces тема: [Vi](http://notes.iissnan.com) | [Acris](https://acris.me) | [Jiaxi He](http://jiaxi.io)
 * :gemini: Gemini тема: [Ivan.Nginx](https://almostover.ru) | [Raincal](https://raincal.com) | [Dandy](https://dandyxu.me)
 
@@ -93,7 +93,7 @@ $ git pull
 
 [stack-url]: https://stackoverflow.com/questions/tagged/theme-next
 [contributing-url]: https://github.com/theme-next/hexo-theme-next/blob/master/.github/CONTRIBUTING.md
-[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3Afeature-request+sort%3Areactions-%2B1-desc
+[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3A%22Feature+Request%22+sort%3Areactions-%2B1-desc
 [issues-url]: https://github.com/theme-next/hexo-theme-next/issues
 
 [gitter-url]: https://gitter.im/theme-next

docs/zh-CN/README.md

@@ -19,7 +19,7 @@
 ## 即时预览
 
 * :heart_decoration: Muse 主题: [LEAFERx](https://leaferx.online) | [Alex LEE](http://saili.science) | [Miaia](https://11.tt)
-* :six_pointed_star: Mist 主题: [Jeff](https://blog.zzbd.org) | [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
+* :six_pointed_star: Mist 主题: [uchuhimo](http://uchuhimo.me) | [xirong](http://www.ixirong.com)
 * :pisces: Pisces 主题: [Vi](http://notes.iissnan.com) | [Acris](https://acris.me) | [Jiaxi He](http://jiaxi.io)
 * :gemini: Gemini 主题: [Ivan.Nginx](https://almostover.ru) | [Raincal](https://raincal.com) | [Dandy](https://dandyxu.me)
 
@@ -110,7 +110,7 @@ $ git pull
 
 [stack-url]: https://stackoverflow.com/questions/tagged/theme-next
 [contributing-url]: https://github.com/theme-next/hexo-theme-next/blob/master/docs/zh-CN/CONTRIBUTING.md
-[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3Afeature-request+sort%3Areactions-%2B1-desc
+[feat-req-vote-url]: https://github.com/theme-next/hexo-theme-next/issues?q=is%3Aopen+is%3Aissue+label%3A%22Feature+Request%22+sort%3Areactions-%2B1-desc
 [issues-url]: https://github.com/theme-next/hexo-theme-next/issues
 
 [gitter-url]: https://gitter.im/theme-next