Automatic documentation update

Author: igorpecovnik

docs/Mirrors.md

@@ -87,7 +87,7 @@ Contributing a mirror helps improve Armbian’s file distribution, ensuring fast
 | [Jevin Canders LLC](https://mirrors.jevincanders.net) | America/New_York | [![East coast](https://flagsapi.com/US/shiny/32.png)](https://www.openstreetmap.org/search?lat=42.8868&lon=-78.8787) | 10000 Mbps | :white_check_mark: | :white_check_mark: |  |  |
 | [Lahansons](https://mirrors.lahansons.com) | America/Los_Angeles | [![North America](https://flagsapi.com/US/shiny/32.png)](https://www.openstreetmap.org/search?lat=37.7757&lon=-122.3952) | 10000 Mbps | :white_check_mark: | :white_check_mark: |  |  |
 | [Nanjing University](https://mirrors.nju.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com/CN/shiny/32.png)](https://www.openstreetmap.org/search?lat=34.7732&lon=113.722) | 10000 Mbps | :white_check_mark: | :white_check_mark: |  |  |
-| [Shandong University](https://mirrors.sdu.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com//shiny/32.png)](https://www.openstreetmap.org/search?lat=32.0617&lon=118.778) | 10000 Mbps | :white_check_mark: |  |  |  |
+| [Shandong University](https://mirrors.sdu.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com/CN/shiny/32.png)](https://www.openstreetmap.org/search?lat=32.0617&lon=118.778) | 10000 Mbps | :white_check_mark: |  |  |  |
 | [Shanghai Tech University](https://mirrors.shanghaitech.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com/CN/shiny/32.png)](https://www.openstreetmap.org/search?lat=34.7732&lon=113.722) | 10000 Mbps | :white_check_mark: | :white_check_mark: |  |  |
 | [SUSTech](https://mirrors.sustech.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com/CN/shiny/32.png)](https://www.openstreetmap.org/search?lat=22.2767&lon=113.5788) | 10000 Mbps | :white_check_mark: |  |  |  |
 | [Tsinghua University](https://mirrors.tuna.tsinghua.edu.cn) | Asia/Shanghai | [![China](https://flagsapi.com/CN/shiny/32.png)](https://www.openstreetmap.org/search?lat=34.7732&lon=113.722) | 10000 Mbps | :white_check_mark: | :white_check_mark: |  |  |