Add link to keycodes doc in how_keyboards_work

diff --git a/docs/how_keyboards_work.md b/docs/how_keyboards_work.md
index 3969c5680de93d229e0695b14879a7b5e21ac467..edd219a32390fb6798d2d8a47ae82484b349833e 100644 (file)
--- a/docs/how_keyboards_work.md
+++ b/docs/how_keyboards_work.md
@@ -51,7 +51,7 @@ layout is set to QWERTY, a sample of the matching table is as follow:
 
 ## Back to the firmware
 
-As the layout is generally fixed (unless you create your own), the firmware can actually call a keycode by its layout name directly to ease things for you. This is exactly what is done here with `KC_A` actually representing `0x04` in QWERTY. The full list can be found in `keycode.txt`.
+As the layout is generally fixed (unless you create your own), the firmware can actually call a keycode by its layout name directly to ease things for you. This is exactly what is done here with `KC_A` actually representing `0x04` in QWERTY. The full list can be found in [keycodes](keycodes.md).
 
 ## List of Characters You Can Send