Update creating-a-stand-alone-photon-machine-with-cloud-init.md

Fixed code block indentation that stopped it from code blocking

Change-Id: Idd3e65917465d11bbf29086c8e427b820fdc7eed
Reviewed-on: http://photon-jenkins.eng.vmware.com:8082/16040
Reviewed-by: Michelle Wang <[email protected]>
Tested-by: Michelle Wang <[email protected]>

Author: dotalchemy

docs/photon_admin/creating-a-stand-alone-photon-machine-with-cloud-init.md

@@ -29,7 +29,7 @@ Cloud-init can customize a Photon OS virtual machine by using the `nocloud` data
 
     The ISO now appears in the current directory: 
 
-        ```
+    ```
     steve@ubuntu:~$ ls
 	meta-data seed.iso user-data
     ```
@@ -46,4 +46,4 @@ Cloud-init can customize a Photon OS virtual machine by using the `nocloud` data
     more /var/log/cloud-init.log
     ```
 
-1. Attach the ISO to the Photon OS virtual machine as a CD-ROM and reboot it so that the changes specified by seed.iso take effect. In this case, `cloud-init` sets the `hostname` and adds the `vim` package.
+1. Attach the ISO to the Photon OS virtual machine as a CD-ROM and reboot it so that the changes specified by seed.iso take effect. In this case, `cloud-init` sets the `hostname` and adds the `vim` package.