chore: Update Docker image reference

README.md

@@ -11,7 +11,7 @@ docker run -d \
   -e BILIARCHIVER_API={THE_API_URL_OF_BILIARCHIVER}\
   -e BILIARCHIVER_BOT={YOUR_BOT
   --restart always \
-  biliarchiverbot
+  ghcr.io/saveweb/biliarchiverbot:latest
 ```
 
 If you have public IP, you can set the bot's webhook to your IP address.