Update mainboard.md

Updated info about GC6609 steppers, thanks to @kmars42

Author: 1coderookie

docs/hardware/mainboard.md

@@ -14,19 +14,16 @@ It's a 32bit 24V mainboard with a GigaDevice MCU labeled as "GD32F303" which see
 It offers a microSD card reader, a USB-C connector and a 10 pin connector for adding the control unit.    
 The mainboard comes with TMC2208(?) silent stepper drivers *soldered* onto the board (so they can't be just swapped out!). 
 
-<!--
 ??? info "GC6609 stepper drivers being used as well!"  
 
-    It seems that Anycubic changed the stepper drivers from original TMC2208 to cheap 2208/2209 clones, called "GC6609".  
-    When exactly this change took place and whether it's a permanent solution or if only a certain batch of these mainboards have been populated with these kind of stepper drivers is unknown. It seems though that the mainboards which are equipped with these drivers are set up with silver heatsinkns instead of black heatsinks.    
+    It seems that Anycubic changed the stepper drivers from original TMC2208 to cheap 2208/2209 clones, called "GC6609". Thanks @kmars42 who came across this!  
+     When exactly this change took place and whether it's a permanent solution or if only a certain batch of these mainboards have been populated with these kind of stepper drivers is unknown. It seems though that the mainboards which are equipped with these drivers are set up with silver heatsinkns instead of black heatsinks.    
     However, the following picture shows this stepper driver (you'd have to take off the heatsink to identify which specific type was being used at your mainboard - which I wouldn't recommend to do if you're just curious to know which one you have..).    
 
     ![GC6609](../assets/images/board_GC6609-stepperdrivers_web.jpeg)  
 
     I personally don't know anything about these drivers, but @aspiringnobody shared his knowledge and findings in [this discussion](https://github.com/1coderookie/KobraGoNeoInsights/discussions/13). If you know anything more, please reach out and contribute to the discussion!  
 
-    Thanks again to @aspiringnobody who came across this and reported it!  
--->  
 
 ![Mainboard TriGorilla front](../assets/images/mainboard_K2Neo_fullview_labeled_web.jpg)