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run rst2myst, with minimal manual formatting fixes

docs/troubleshooting/restart.md

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+# Stopping and Restarting the JupyterHub Server
+
+The user can **stop** the JupyterHub server using:
+
+```console
+$ systemctl stop jupyterhub.service
+```
+
+:::{warning}
+Keep in mind that other services that may also require stopping:
+
+- The user's Jupyter server: jupyter-username.service
+- traefik.service
+
+:::
+
+The user may **restart** JupyterHub and Traefik services by running:
+
+```console
+$ sudo tljh-config reload proxy
+```
+
+This calls systemctl and restarts Traefik. The user may call systemctl and restart only the JupyterHub using the command:
+
+```console
+$ sudo tljh-config reload hub
+```