[Keyboard] Add pumpkin pad (#18897)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/laser_ninja/pumpkin_pad/readme.md

@@ -0,0 +1,23 @@
+# Pumpkin Pad
+
+![pumpkin-pad](https://i.imgur.com/jFkl9rwh.jpg)
+
+A 60% PCB
+
+-   Keyboard Maintainer: [Jels](https://github.com/Jels02)
+-   Hardware Supported: Pumpkin Pad PCB
+-   Hardware Availabililty: [Laser_Ninja](https://kennui.com/w/Laser_Ninja)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make laser_ninja/pumpkin_pad:default
+
+Flashing example for this keyboard:
+
+    make laser_ninja/pumpkin_pad:default:flash
+
+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).
+
+-   **Bootmagic reset**: Hold down the top left key and plug in the keyboard
+-   **Physical reset button**: Briefly press the button on the back of the PCB
+-   **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available