Update kube-jupyterhub.md

kube-jupyterhub.md

@@ -8,19 +8,21 @@ cp linux-amd64/helm /root/bin
 ---
 
 The default helm installed by magnum:
+```bash
 echo $PATH
 /root/.local/bin:/root/bin:/srv/magnum/bin:/srv/magnum/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/var/lib/snapd/snap/bin
 
 /srv/magnum/bin/helm version
 version.BuildInfo{Version:"v3.2.1", GitCommit:"fe51cd1e31e6a202cba7dead9552a6d418ded79a", GitTreeState:"clean", GoVersion:"go1.13.10"}
+```
 
 The new installed helm in /root/bin
-
+```bash
 helm version
 version.BuildInfo{Version:"v3.5.0", GitCommit:"32c22239423b3b4ba6706d450bd044baffdcf9e6", GitTreeState:"clean", GoVersion:"go1.15.6"}
-
-The creation of volumes required by kube app can achieved if :
-csi-cinder-controllerplugin + csi-cinder-nodeplugin pods are running
+---
+The creation of volumes required by kube app can achieved :
+if csi-cinder-controllerplugin + csi-cinder-nodeplugin pods are running
 and if a dedicated storage class is created (storageclass.yaml)
 
 ```
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