fixed rendering

Author: Jak-MS

articles/virtual-machines/linux/add-disk.md

@@ -118,8 +118,10 @@ The partition table has been altered!
 Calling ioctl() to re-read partition table.
 Syncing disks.
 ```
-Use the below command to update the kernel
+Use the below command to update the kernel:
+```
 partprobe 
+```
 
 Now, write a file system to the partition with the `mkfs` command. Specify your filesystem type and the device name. The following example creates an *ext4* filesystem on the */dev/sdc1* partition that was created in the preceding steps: