storage/cifs: Fix markdown fenced codeblocks

docs/kubernetes/storage/cifs.md

@@ -19,7 +19,6 @@
 
 ## juliohm CIFS volume driver
 
-<https://k8scifsvol.juliohm.com.br/>
 <https://github.com/juliohm1978/kubernetes-cifs-volumedriver>
 
 - As of 2021-07: Actively maintained (6 contributors, recent releases, 77 ⭐)
@@ -28,7 +27,7 @@
 
 - requires `cifs-utils` installed on the host
 
-  ```
+```sh
 apt-get install -y cifs-utils jq
 cd kubernetes-cifs-volumedriver/
 kubectl apply -f install.yaml
@@ -36,13 +35,13 @@
 
 Verify:
 
-```
+```sh
 kubectl -n default exec -it juliohm-cifs-volumedriver-installer-m96zq ls /flexmnt/juliohm~cifs/cifs
 ```
 
 Remove provisioning container:
 
-```
+```sh
 kubectl delete -f install.yaml
 ```