[Keyboard] Add Mk65 (#19346)

Co-authored-by: Neil Brian Ramirez <nightlykeyboards@gmail.com>
Co-authored-by: Neil Brian Ramirez <nightlyboards@gmail.com>

keyboards/mk65/readme.md

@@ -0,0 +1,26 @@
+# MK-65
+
+![MK-65](https://i.imgur.com/PMeyjArh.png)
+
+An exploded 65% with encoder and an rgb accent piece
+
+* Keyboard Maintainer: [DeskDaily](https://github.com/DeskDaily)
+* Hardware Supported: Atmega32u4
+
+Make example for this keyboard (after setting up your build environment):
+
+    make mk65:default
+	
+Flashing example for this keyboard:
+
+    make mk65:default:flash
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the upper left key/esc) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
+
+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).