diff --git a/disable-encrypt-swap-partition.md b/disable-encrypt-swap-partition.md
index 3ba9d80..05bab7a 100644
--- a/disable-encrypt-swap-partition.md
+++ b/disable-encrypt-swap-partition.md
@@ -1,57 +1,66 @@
-## disable encrypt swap partition
-
-* Turn off swap
-
-~~~
-swapoff /dev/mapper/cryptswap1
-~~~
-
-* Undo the existing mapping.
-
-~~~
-cryptsetup luksClose /dev/mapper/cryptswap
-~~~
-
-* remove your encrypt swap device define in your /etc/crypttab 
-
-* ajust /etc/fstab to use your real swap partition 
-
-~~~
-/dev/nvme0n1p2   none   swap   discard   0   0
-~~~
-
-/!\ le point ci-dessous est sans doute inutile
-
-* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to point to your real partition
-
-~~~
-GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
-~~~
-
-~~~
-update-grub
-~~~
-
-* edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line.
-
-~~~
-RESUME=/dev/nvme0n1p2
-~~~
-
-Register these changes.
-
-~~~
-update-initramfs -u -k all
-~~~
-
-* make your partition a swap
-
-~~~
-mkswap /dev/nvme0n1p2
-~~~
-
-* activate swap
-
-~~~
-swapon -a
-~~~
+% This is my title
+
+# disable encrypt swap partition
+
+## prerequisite
+
+* This setup is based on [encrypt swap partition](./encrypt-swap-Ubuntu-20.04)
+* all command bellow are run has root
+
+## disable encrypt swap partition
+
+* Turn off swap
+
+~~~
+swapoff /dev/mapper/cryptswap1
+~~~
+
+* Undo the existing mapping.
+
+~~~
+cryptsetup luksClose /dev/mapper/cryptswap
+~~~
+
+* remove your encrypt swap device define in your /etc/crypttab 
+
+* ajust /etc/fstab to use your real swap partition 
+
+~~~
+/dev/nvme0n1p2   none   swap   discard   0   0
+~~~
+
+/!\ le point ci-dessous est sans doute inutile
+
+* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to point to your real partition
+
+~~~
+GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
+~~~
+
+~~~
+update-grub
+~~~
+
+* edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line.
+
+~~~
+RESUME=/dev/nvme0n1p2
+~~~
+
+Register these changes.
+
+~~~
+update-initramfs -u -k all
+~~~
+
+* make your partition a swap
+
+~~~
+mkswap /dev/nvme0n1p2
+~~~
+
+* activate swap
+
+~~~
+swapon -a
+~~~