docs: missing colon for a note (#75453)

docs/docsite/rst/user_guide/sample_setup.rst

@@ -61,7 +61,7 @@ This layout organizes most tasks in roles, with a single inventory file for each
         monitoring/           # ""
         fooapp/               # ""
 
-.. note: By default, Ansible assumes your playbooks are stored in one directory with roles stored in a sub-directory called ``roles/``. As you use Ansible to automate more tasks, you may want to move your playbooks into a sub-directory called ``playbooks/``. If you do this, you must configure the path to your ``roles/`` directory using the ``roles_path`` setting in ansible.cfg.
+.. note:: By default, Ansible assumes your playbooks are stored in one directory with roles stored in a sub-directory called ``roles/``. As you use Ansible to automate more tasks, you may want to move your playbooks into a sub-directory called ``playbooks/``. If you do this, you must configure the path to your ``roles/`` directory using the ``roles_path`` setting in ansible.cfg.
 
 Alternative directory layout
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