Ender 3 - Update README

creality-ender3/README.md

@@ -6,7 +6,7 @@
 4. [Filament set up](#filament-set-up)
 5. [Marlin custom firmware](#marlin-custom-firmware)
 6. [Printer calibration](#printer-calibration)
-7. [3D printed custom parts](#3d-printed-custom-parts)
+7. [3D printed custom parts](#3d-printed-custom-parts--mods)
 
 # Octoprint backup archive
 
@@ -210,10 +210,12 @@ After firware update, proceed with the different calibrations in the above order
     - [Explanation](https://marlinfw.org/docs/features/lin_advance.html)
     - [Pattern generation tool](https://marlinfw.org/tools/lin_advance/k-factor.html)
 
-# 3D printed custom parts
+# 3D printed custom parts & mods
 
 | Item  | 3D files  | Final result |
 |-------|-----------|--------------|
+| [BTT SKR E3 mini mainboard](https://www.aliexpress.com/item/4001050145015.html) | n/a | ![show off](images/mods/btt-skr-e3-mini-v2.jpg) |
+| [BLTouch](https://www.aliexpress.com/item/32777786433.html) for Automatic Bed Leveling (ABL) | n/a | ![show off](images/mods/bltouch.jpg) |
 | _Raspberry Pi 4 / Octoprint case_ ([tutorial to enable power switch/LED](https://web.archive.org/web/20250101204129/https://embeddedcomputing.com/technology/open-source/development-kits/raspberry-pi-power-up-and-shutdown-with-a-physical-button))   | [Printable](https://www.printables.com/model/1008828-creality-ender-3-station-lcd-raspberry-pi-4)  | ![show off](images/mods/octoprint-case.jpg) |
 | _Ender 3 PSU Support Bracket_       | [Thingiverse](https://www.thingiverse.com/thing:3444134) | ![show off](images/mods/psu-support-bracket.jpg)|
 | Aukey LM1 WebCam holder | [Thingiverse](https://www.thingiverse.com/thing:4683831) | ![show off](images/mods/aukey-LM1-webcam-holder.jpg) |