YD60MQ refactor and Configurator layout support (#8313)

* refactor yd60mq.h

- four-space indent
- use K<row><col> base32hex notation
- rename LAYOUT to LAYOUT_all (with alias for backwards compatibility)

* refactor yd60mq.c to use led_update_kb()

* align rules.mk to AVR template

* refactor default keymap

Also correct positions for KC_NUHS and KC_NUBS.

* update readme

* add Configurator layout support

* initialize the Caps Lock LED pin properly

keyboards/yd60mq/yd60mq.c

@@ -1,12 +1,19 @@
 #include "yd60mq.h"
 
-void led_set_kb(uint8_t usb_led) {
-    if (IS_LED_ON(usb_led, USB_LED_CAPS_LOCK)) {
-        setPinOutput(F4);
-        writePinLow(F4);
-    } else {
-        setPinInput(F4);
-	}
-
-    led_set_user(usb_led);
+void matrix_init_kb(void){
+    setPinOutput(F4);
+    writePinHigh(F4);
+}
+
+bool led_update_kb(led_t led_state) {
+    bool res = led_update_user(led_state);
+    if (res) {
+        // writePin sets the pin high for 1 and low for 0.
+        // In this example the pins are inverted, setting
+        // it low/0 turns it on, and high/1 turns the LED off.
+        // This behavior depends on whether the LED is between the pin
+        // and VCC or the pin and GND.
+        writePin(F4, !led_state.caps_lock);
+    }
+    return res;
 }