fix: docker

Dockerfile

@@ -3,6 +3,6 @@ FROM alpine
 ADD i2-bill-erp.tar.gz /app/
 
 VOLUME [ "/app/etc" ]
-EXPOSE 6166
+EXPOSE 8888
 WORKDIR /app
 CMD ["/app/i2-bill-erp", "-f", "/app/etc/transform.yaml"]