update readme.md

readme.md

@@ -22,3 +22,13 @@ mgob-host:8090/debug pprof endpoint
    docker exec -it mongo-backup sh
 2. 恢复命令
    mongorestore --gzip --archive=/storage/local-3dshow/local-3dshow1-1668757800.gz --host 3dshow-mongo:27017 --drop -u root -p 3dshow --authenticationDatabase admin
+
+## 格式化备份文件
+
+cd ./format-backup-file
+
+go build -o format-backup-file
+
+chmod +x format-backup-file
+
+sh format-backup-file