Updated Config parameter (markdown)

Config-parameter.md

@@ -37,6 +37,12 @@ Note, that you can dereive from [default_wheels_inverted] which already defines
   -DDEFAULT_BREMSMAX=4000
 ```
 
+Don't forget, to define which pins have the throttle/break potis connected. A calibration dialog appears at bootup, if insane values are measured.
+```
+    -DPINS_GAS=35
+    -DPINS_BREMS=33
+```
+
 ## Gametrak related potis (only available when FEATURE_GAMETRAK enabled)
 ```
   -DDEFAULT_GAMETRAKXMIN=0