Docker under Windows: Mounts must not have trailing slash /

If you use a recent Docker Desktop under Windows 10, the maintaina/deployments horde setup would not run but give you this error:

Error response from daemon: path /home/lang/deployments/groupware-mail/original_config/apps is mounted on / but it is not a shared mount.

This patch would fix the issue:

-      - ./original_config/apps/:/srv/original_config/apps/
+      - ./original_config/apps/:/srv/original_config/apps
       ## Uncomment these two to provide your own letsencrypt certs and vhosts file

Will be submitted shortly. The trailing slash makes the difference. I’m not sure I like this. Please report if anything breaks running on Linux.