Update README.md

Author: adysec

README.md

@@ -3,15 +3,15 @@
 ### 全量tracker服务器
 
 ```
-https://raw.githubusercontent.com/adysec/tracker/refs/heads/main/trackers_all.txt
+https://down.adysec.com/trackers_all.txt
 或
 https://raw.githubusercontent.com/adysec/tracker/main/trackers_all.txt
 ```
 
 ### 优选tracker服务器
 
 ```
-https://raw.githubusercontent.com/adysec/tracker/refs/heads/main/trackers_best.txt
+https://down.adysec.com/trackers_best.txt
 或
 https://raw.githubusercontent.com/adysec/tracker/main/trackers_best.txt
 ```