diff --git a/README.md b/README.md
index 3cad915..c1c2f24 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ To get the hole gpg thing working, you should use a offline computer. This syste
 Most people do not have laying around a lot of hardware, which the would spend using for this. In general nobody uses a dedicated offline root CA, if I need to explain why privacy is important.
 
 
-# Prerequisites
+## Prerequisites
 
  1. small embedded linux powered device
  2. easily available and widely used platform
@@ -14,9 +14,9 @@ Most people do not have laying around a lot of hardware, which the would spend u
  7. possible file integrity checks
  8. USB-A connector(s) for the GNUK token/SmartCard Reader
 
-# terminal user interface
+## terminal user interface
 
-## main page - overview
+### main page - overview
 
 1. Integrity OK/Fail
  1. /root filesystem
@@ -30,8 +30,6 @@ Most people do not have laying around a lot of hardware, which the would spend u
 7. Key length Failure/Warning (BSI recommendation)
 8. revocation certificate available
 
-# Links
-[https://vincentserpoul.github.io/post/alpine-linux-rpi0/]
 
 ## 00-preparation
  1. format sd card with 3 partitions
@@ -109,12 +107,14 @@ edit /etc/mdev.conf for usb tokens [ToDo]
 killall gpg-agent
 
 #mount encrypted container
+```
 cryptsetup -v luksOpen /media/mmcblk0p2/PRIVATE private_file
 mount /dev/mapper/private_file /mnt/private_file
 --Umount and close file
 killall gpg-agent
 umount /mnt/private_file
 cryptsetup luksClose private_file
+```
 
 ##kernel update [inProgress]
 
@@ -152,28 +152,29 @@ apk add linux-rpi
 [offline]
 1. extract original image to first partion
 2. restore cmdline and usercfg.txt
-[root] delete from overlay partition the cache folder
+  - [root] delete from overlay partition the cache folder
 1. in case of a folder	(delete from overlay the /usr)
 2. in case of an image
   - `rm persist.img && dd if=/dev/zero of=persist.img bs=1024 count=0 seek=209715`
-  - `mkfs.ext4 persist.im`
+  - `mkfs.ext4 persist.img`
+
 [online]
 1. recreate .work folder under /media/persist
 2. recreate usr folder under /media/persist
-3. `mkdir /mnt/private_file
+3. `mkdir /mnt/private_file`
 4. check mountpoint for /usr | mount /usr
 5. fix the repository
 6. fix the network interface
 7. apk update
 8. apk upgrade
 9. 're-add' installed packages [e.g. 00-preparation]
-10. `remount /media/mmcblk0p1 rewritable`
+10. remount /media/mmcblk0p1 rewritable
 11. `mount -o rw,remount /media/mmcblk0p1/`
-12. `cp apk to /media/mmcblk0p1/apk/armh`
-
--lsblk
--mkinitfs
-reboot without lbu commit
+12. `cd /media/mmcblk0p2/cache && cp *.apk /media/mmcblk0p1/apks/armhf`
+13. `lsblk`
+14. `ln -s /media/mmcblk0p1/boot boot`
+15. `mkinitfs`
+16. reboot without lbu commit
 
 ## fast major release update
  1. delete content of first partition
@@ -190,13 +191,13 @@ reboot without lbu commit
  10. apk upgrade
  11. reboot
 
-##generic minor  (to install it into ram)
+## generic minor  (to install it into ram)
  1. apk 
  2. apk upgrade
  3. lbu commit
 
 ## 1.44" OLED and button
-#create a overlay for /usr otherwise space is missing
+create a overlay for /usr otherwise space is missing
 https://gist.github.com/sdalu/4fd108e0a96d6b41d52fde7542cc95ce [not working fbtft module mossing]
 apk add python2 #obsolete
 apk add build-base #binary is build for rpi3
@@ -210,13 +211,14 @@ pip install --user RPi.GPIO
 pip install --user spidev
 
 
-##modern kernel approach
+## modern kernel approach
 wget https://github.com/juj/fbcp-ili9341/archive/refs/heads/master.zip
 cmake -DWAVESHARE_ST7735S_HAT=ON -DSPI_BUS_CLOCK_DIVISOR=6
 apk add raspberrypi-dev
 
 
 ## nitrokey
+```
  apk add py-pip build-base python3-dev py3-wheel [240Mb]
  apk add libffi-dev [7Mb]
  apk add openssl-dev rust cargo [337Mb]	
@@ -229,7 +231,8 @@ lbu inc /home
 lbu inc /root
  pip3 install --user wheel 
  pip3 install --user pynitrokey [takes about 35min, can fail due missing space left on device, but cbor fails nevertheless]
- 
+ ```
+
  #fix $PATH to /root/.local/bin in /etc/profile
  #need mdev/udev rules to grant access for user
  #libudev-zero is a replacement, which is needed for pcscd
@@ -241,5 +244,6 @@ lbu inc /root
  #general reconsideration of usefulness
  
 ### links
-https://github.com/hashbang/airgap
-https://riseup.net/de/security/message-security/openpgp/gpg-best-practices
+[https://github.com/hashbang/airgap]
+[https://riseup.net/de/security/message-security/openpgp/gpg-best-practices]
+[https://vincentserpoul.github.io/post/alpine-linux-rpi0/]