Update wiring-guides.md (#277)

Replace SN74(A)HCT>>127<<(N) with SN74(A)HCT>>125<<(N) as SN74(A)HCT127(N) is wrong and also does not seem to exist

Author: Msprg

docs/basics/wiring-guides.md

@@ -25,7 +25,7 @@ More info on analog LEDs can be found [here](/basics/compatible-led-strips/#non-
 
 ## Levelshifter
 
-The SN74(A)HCT127(N) can be wired in different ways. The diagrams show the easiest wiring by connecting unused inputs to GND and leaving unused outputs unconnected. In general:
+The SN74(A)HCT125(N) can be wired in different ways. The diagrams show the easiest wiring by connecting unused inputs to GND and leaving unused outputs unconnected. In general:
 
 - Inputs 1A to 4A: connect unused inputs to GND
 - Connect the output disable pins 1<span style="text-decoration:overline">OE</span> to 4<span style="text-decoration:overline">OE</span> to GND, enabling all outputs