[Keyboard] Add dp3000 macropad (#21413)

keyboards/dp3000/readme.md

@@ -0,0 +1,27 @@
+# DP3000
+
+![dp3000 macropad](https://i.imgur.com/uBHS8EYh.jpg)
+
+dp3000 is a simple yet elegant macropad, 2x4 (8 keys), dual encoder, embedded with an Atmel 32u4 chip, powered by QMK.
+
+* Keyboard Maintainer: [Deddia Permana](https://github.com/depermana12)
+* Hardware Supported: DP3000 PCB, ATmega32u4
+* Hardware Availability: [tokopedia.com/gundamtricks](https://www.tokopedia.com/gundamtricks)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make dp3000:default
+
+Flashing example for this keyboard:
+
+    make dp3000: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).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* Bootmagic reset: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* Physical reset button: Briefly press reset button twice, located in front of the first rotary encoder (left rotary encoder)
+* Keycode in layout: Press the key mapped to QK_BOOT if it is available