Update docs/configuring-playbook-etherpad.md: add ensure-matrix-users-created to the raw ansible-playbook

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/configuring-playbook-etherpad.md

@@ -48,7 +48,7 @@ After configuring the playbook and potentially [adjusting your DNS records](#adj
 
 <!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
 ```sh
-ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
+ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start
 ```
 
 The shortcut commands with `just` program are also available: `just run-tags install-all,start` or `just run-tags setup-all,start`.