Update docs/playbook-tags.md: copy the recommendation for using the just command from mash-playbook

This is based on 581e6ca080.

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

docs/playbook-tags.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-FileCopyrightText: 2018 - 2022 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 - 2023 Slavi Pantaleev
 SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
 
 SPDX-License-Identifier: AGPL-3.0-or-later
@@ -9,7 +9,9 @@ SPDX-License-Identifier: AGPL-3.0-or-later
 
 The Ansible playbook's tasks are tagged, so that certain parts of the Ansible playbook can be run without running all other tasks.
 
-The general command syntax is: `ansible-playbook -i inventory/hosts setup.yml --tags=COMMA_SEPARATED_TAGS_GO_HERE`
+The general command syntax is:
+- (**recommended**) when using `just`: `just run-tags COMMA_SEPARATED_TAGS_GO_HERE`
+- when not using `just`: `ansible-playbook -i inventory/hosts setup.yml --tags=COMMA_SEPARATED_TAGS_GO_HERE`
 
 Here are some playbook tags that you should be familiar with: