added 'docker network create caddy' command

main.sh

@@ -44,6 +44,8 @@ generate_env_files() {
 }
 
 start_services() {
+    docker network create caddy 2>/dev/null
+
     echo "Starting gitea..."
     docker compose -f ./gitea/docker-compose.yml up -d
     if [ $? -eq 0 ]; then