bugfix: naming in variables for builtin buttons and leds

Author: MaksymShutiak

templates/blinky/nRF52840dk/main.c

@@ -34,7 +34,7 @@ __attribute__((naked, noreturn)) void _reset(void) {
 
 extern void _estack(void);  // Defined in link.ld
 
-// 16 standard and 91 STM32-specific handlers
+// 16 standard and 42 nRF-specific handlers
 __attribute__((section(".vectors"))) void (*const tab[16 + 42])(void) = {
     _estack, _reset};