fix: update Docker image reference to use GitHub Container Registry

Author: pplulee

docker-compose.yml

@@ -2,8 +2,7 @@ version: '3.8'
 
 services:
   betterforward:
-    image: pplulee/betterforward:latest
-    container_name: betterforward
+    image: ghcr.io/sidecloudgroup/betterforward:latest
     restart: unless-stopped
     environment:
       - TOKEN=your_bot_token_here

docs/README.md

@@ -77,7 +77,7 @@ docker run -d --name betterforward \
     -e WORKER=2 \
     -v /path/to/data:/app/data \
     --restart unless-stopped \
-    pplulee/betterforward:latest
+    ghcr.io/sidecloudgroup/betterforward:latest
 ```
 
 If you need to use a custom API, you can set the environment variable `TG_API`. Leave it empty or unset to use the

docs/README_zh.md

@@ -72,7 +72,7 @@ docker run -d --name betterforward \
     -e WORKER=2 \
     -v /path/to/data:/app/data \
     --restart unless-stopped \
-    pplulee/betterforward:latest
+    ghcr.io/sidecloudgroup/betterforward:latest
 ```
 
 ## 自定义 API