Merge pull request #666 from DataCascadia/pycascades_sprints

Added instructions for restarting JupyterHub to docs (re: #455)

docs/troubleshooting/index.rst

@@ -10,6 +10,7 @@ guides help you find what is broken & hopefully fix it.
    :caption: Troubleshooting
 
    logs
+   restart
 
 Often, your issues are not related to TLJH itself but to the cloud provider
 your server is running on. We have some documentation on common issues you
@@ -21,4 +22,4 @@ here to better support your favorite provider!
 
    providers/google
    providers/amazon
-   providers/custom
+   providers/custom

docs/troubleshooting/restart.rst

@@ -0,0 +1,31 @@
+
+=============================================
+Stopping and Restarting the JupyterHub Server
+=============================================
+
+The user can **stop** the JupyterHub server using:
+
+.. code-block:: 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:
+
+.. code-block:: 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: 
+
+.. code-block:: console
+
+     $ sudo tljh-config reload hub
+
+