Update HCF as "Function"

src/posts/a380x-full-speed-ahead.md

@@ -93,7 +93,7 @@ Onboard Airport Navigation System (OANS), which enhances the flight crew's situa
 
 Tilting landing gear, with realistic NWS (Nose Wheel Steering) and BWS (Body Wheel Steering), with high-detail modelling and textures, powered by 5000 PSI Hydraulic lines, valves and actuators which are fully and realistically simulated. 
 
-We've also managed to implement HCF (Heading Control System) which assists taxi operations by countering any crosswind or ground slope without ay pilot input.
+We've also managed to implement HCF (Heading Control Function) which assists taxi operations by countering any crosswind or ground slope without ay pilot input.
 
 #### FlyPadOS v3 and Aircraft Configuration
 
@@ -170,4 +170,4 @@ Download the latest version of the A32NX:
 
 *Pictures in this article are made and provided by [insert here]. They retain the exclusive rights*
 
-*Editors: Commander Ga, Davy, RogePete*
+*Editors: Commander Ga, Davy, RogePete*