modify enc.disk size as 20M

Signed-off-by: Ted Chang <student0804@gmail.com>

Author: HC-Chang

_posts/2020-04-13-Disk-Encryption.md

@@ -177,8 +177,12 @@ provided as a password just in time (default) and or specified as key file
 managing LUKS volumes.<br>
 
 Let's setup a new LUKS volume with a simple passphrase as key protector:<br>
+<<<<<<< HEAD
 {:start="12"}<br>
 12. `dd if=/dev/zero of=enc.disk bs=1M count=10`<br>
+=======
+12. `dd if=/dev/zero of=enc.disk bs=1M count=20`<br>
+>>>>>>> ab6599a (modify enc.disk size as 20M)
 13. `dd if=/dev/urandom of=disk.key bs=1 count=32`<br>
 14. `loopdevice=$(losetup -f) && sudo losetup $loopdevice enc.disk`<br>
 15. `sudo cryptsetup luksFormat --key-file=disk.key $loopdevice`<br>