Note issue with dollar signs in encfs password. Resolves #392.

vars/user.yml

@@ -7,7 +7,7 @@
 # common
 domain: TODO.com
 main_user_name: TODO
-encfs_password: TODO
+encfs_password: TODO    # NOTE: must not contain dollar sign characters '$'
 
 # database
 db_admin_username: postgres