Fix preonic layout documentation (#11655)

* [Apple M5120] First iteration

* Cleaned apple_m5120 files

* Changes requested by PR

* Update keyboards/apple_m5120/iso/rules.mk

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/apple_m5120/iso/keymaps/default/keymap.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Updated Preonic default layout doc

* Removed non related files

Co-authored-by: dbroqua <dbroqua@mousur.org>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/preonic/keymaps/default/keymap.c

@@ -108,7 +108,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+-------------+------+------+------+------+------|
  * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
  * |------+------+------+------+------+------|------+------+------+------+------+------|
- * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |      |
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | | Home | End  |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
  * `-----------------------------------------------------------------------------------'
@@ -129,7 +129,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+-------------+------+------+------+------+------|
  * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
  * |------+------+------+------+------+------|------+------+------+------+------+------|
- * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |      |
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / | Pg Up| Pg Dn|      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
  * `-----------------------------------------------------------------------------------'
@@ -146,9 +146,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * ,-----------------------------------------------------------------------------------.
  * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |      | Reset| Debug|      |      |      |      |TermOf|TermOn|      |      |  Del |
  * |------+------+------+------+------+-------------+------+------+------+------+------|
- * |      |      |      |Aud on|AudOff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |      |      |Aud cy|Aud on|AudOff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
  * |------+------+------+------+------+------|------+------+------+------+------+------|
  * |      |Voice-|Voice+|Mus on|MusOff|MidiOn|MidOff|      |      |      |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|