move yd60mq to ymdk vendor folder (#15647)

data/mappings/keyboard_aliases.json

@@ -553,7 +553,7 @@
           target: 'xelus/valor/rev1'
     },
     yd60mq: {
-          target: 'yd60mq/12led'
+          target: 'ymdk/yd60mq/12led'
     },
     ymd75: {
           target: 'ymd75/rev1'

keyboards/ymdk/yd60mq/readme.md

@@ -13,17 +13,17 @@ Customizable 60% PCB by [YMDK](https://ymdk.aliexpress.com/store/429151?spm=2114
 Make example for this keyboard (after setting up your build environment):
 
 ```sh
-make yd60mq:default        # builds the 12 LED variant
-make yd60mq/12led:default  # also builds the 12 LED variant
-make yd60mq/16led:default  # builds the 16 LED variant
+make ymdk/yd60mq:default        # builds the 12 LED variant
+make ymdk/yd60mq/12led:default  # also builds the 12 LED variant
+make ymdk/yd60mq/16led:default  # builds the 16 LED variant
 ```
 
 The keyboard uses a DFU bootloader. To make a keymap and use dfu to flash it:
 
 ```sh
-make yd60mq:default:flash        # builds and flashes the 12 LED variant
-make yd60mq/12led:default:flash  # also builds and flashes the 12 LED variant
-make yd60mq/16led:default:flash  # builds and flashes the 16 LED variant
+make ymdk/yd60mq:default:flash        # builds and flashes the 12 LED variant
+make ymdk/yd60mq/12led:default:flash  # also builds and flashes the 12 LED variant
+make ymdk/yd60mq/16led:default:flash  # builds and flashes the 16 LED variant
 ```
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).