Add ssh to supported protocols

Author: mickenordin

spec.yaml

@@ -592,6 +592,7 @@ components:
             JSON object with specific options for each protocol.
             The supported protocols are:
             - `webdav`, to access the data via WebDAV
+            - `ssh`, to access the data via SFTP/SCP
             - `webapp`, to access remote web applications
             - `ssh`, to access the data via SFTP/SCP
             Other custom protocols might be added in the future.