add README

README.md

@@ -0,0 +1,8 @@
+# rclone-docker-config
+a Dockerfile to build a minimal rclone image that can take config from cli
+
+```bash
+docker build -t rclone .
+docker run -v <dir to backup>:/mnt/rclone rclone sync <remote>:<dir> /mnt/rclone
+docker run -v <dir to backup>:/mnt/rclone rclone sync /mnt/rclone <remote>:<dir>
+```