Added wiring diagram for Creality boards

docs/tutorials/config/printer-firmware/marlin/marlin-config.md

@@ -52,3 +52,6 @@ Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN`
 
 - Uncomment `#define Z_SAFE_HOMING`
   - Default for this setting puts the nozzle in the center of the bed for G28Z, but you can define a corner offset if you wish. This will be performed before any bed levelling procedure
+
+#### Using Auto Bed leveling
+Refer to [Marlin's excellent Wiki](http://marlinfw.org/docs/gcode/G029-abl.html) on the subject.

docs/tutorials/wiring/creality.md

@@ -0,0 +1,2 @@
+![](../Creality-OEM-Connection-Diagram-Rev.1.x.x.svg)
+<img src="../Creality-OEM-Connection-Diagram-Rev.1.x.x.svg">

mkdocs.yml

@@ -46,6 +46,8 @@ nav:
     - 'Firmware Config':
       - 'Marlin': 'tutorials/config/printer-firmware/marlin/marlin-config.md'
       - 'Klipper': 'tutorials/config/printer-firmware/klipper/klipper-config.md'
+    - 'Wiring Diagrams':
+      - 'Creality': 'tutorials/wiring/creality.md'
   - 'Main Site': 'https://pyroballpcbs.com'
 
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