change formatting

input examples are now given as

```bash
input $ARG1
```

While outputs use md's '> ' sign as a quote.

system/mdadm.md

@@ -7,7 +7,9 @@ tags: [ "Documentation", "RAID" ]
 You will need 4 disks and the `mdadm` package.
 The total size will be equal to the disks x 3, because one will be used for redundancy.
 
-> sudo mdadm --create --verbose /dev/*md127* --level=5 --raid-devices=*4* */dev/sdb /dev/sdc /dev/sdd /dev/sde*
+```bash
+sudo mdadm --create --verbose /dev/*md127* --level=5 --raid-devices=*4* */dev/sdb /dev/sdc /dev/sdd /dev/sde*
+```
 
 Note the variable parts:
 
@@ -17,17 +19,23 @@ Note the variable parts:
 
 Now look at how the raid status:
 
-> cat /proc/mdstat
+```bash
+cat /proc/mdstat
+```
 
 This will increase until the entire thing is fine.
 
 Check the health of your `mdadm` array:
 
-> sudo mdadm --detail /dev/md127
+```bash
+sudo mdadm --detail /dev/md127
+```
 
 You should see `State : clean`. If you see it is `degraded`, then a disk has broken.
 
 ## Replacing a Disk
 
-> sudo mdadm --add /dev/md127 /dev/sdb1
+```bash
+sudo mdadm --add /dev/md127 /dev/sdb1
+```