Add root-folder for sftp email attachment

crss-admin/crss-admin.yml

@@ -78,4 +78,6 @@ sftp:
     username: pemc
     password: 123qwe
     host: sftp.marathon.l4lb.thisdcos.directory
-    port: 22
+    port: 22
+  docmgt:
+    root-dir: /crss/docmgt