diff --git a/README.md b/README.md
index 41f9157..b32cbcd 100644
--- a/README.md
+++ b/README.md
@@ -147,7 +147,7 @@ You can enable it for your jupyterhub with the following lines in your
 `jupyterhub_config.py` file
 
 ```python
-c.JupyterHub.spawner_class = 'systemdspawner.SystemdSpawner'
+c.JupyterHub.spawner_class = "systemd"
 ```
 
 Note that to confirm systemdspawner has been installed in the correct jupyterhub
diff --git a/check-kernel.bash b/check-kernel.bash
index 5f92de9..b055e0d 100755
--- a/check-kernel.bash
+++ b/check-kernel.bash
@@ -1,7 +1,11 @@
 #!/bin/bash
-
+#
+# SystemdSpawner's config cpu_limit and mem_limit needs certain linux kernel
+# options enabled, otherwise they will fail silently. Running this script checks
+# if they are.
+#
 # Partially stolen from https://github.com/docker/docker/blob/master/contrib/check-config.sh
-
+#
 possibleConfigs=(
     '/proc/config.gz'
     "/boot/config-$(uname -r)"
diff --git a/examples/README.md b/examples/README.md
new file mode 100644
index 0000000..7823bb4
--- /dev/null
+++ b/examples/README.md
@@ -0,0 +1,2 @@
+This file should describe how to use the jupyterhub.service file together with a
+basic jupyterhub_config.py yet to be provided.
diff --git a/jupyterhub.service b/examples/jupyterhub.service
similarity index 50%
rename from jupyterhub.service
rename to examples/jupyterhub.service
index d1125b7..6916067 100644
--- a/jupyterhub.service
+++ b/examples/jupyterhub.service
@@ -1,3 +1,10 @@
+# This is a systemd unit file describing a how to start a jupyterhub, provided
+# as an example.
+#
+# systemd ref:   https://www.freedesktop.org/wiki/Software/systemd/
+# unit file ref: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
+# syntax ref:    https://www.freedesktop.org/software/systemd/man/systemd.syntax.html
+#
 [Service]
 ExecStart=/usr/local/bin/jupyterhub --no-ssl --config /etc/local/jupyterhub/jupyterhub_config.py
 ReadOnlyDirectories=/