[Keyboard] Add pimentoso/paddino02 (#8756)

* added pimentoso/paddino02

* pimentoso/paddino02 fix config

* pimentoso/paddino02 fix right handed keymap

* pimentoso/paddino02 fix readme

* pimentoso/paddino02 code style

* pimentoso/paddino02 code style

* pimentoso/paddino02 code style

* pimentoso/paddino02 fix readme

* pimentoso/paddino02 code style

* pimentoso/paddino02 code style

keyboards/pimentoso/paddino02/readme.md

@@ -0,0 +1,33 @@
+# Paddino02
+
+10-keys DIY mechanical macropad/gamepad. Features staggered columns, 2 thumb keys, symmetric PCB (you can build right-handed and left-handed versions with the same PCB). 
+
+Project page on Github, with build steps and 3d-printable files:
+
+https://github.com/Pimentoso/Paddino02
+
+* Keyboard Maintainer: [Michele Ferri](https://github.com/Pimentoso)
+* Hardware Supported: Paddino02 PCB rev1, rev2 + Arduino Pro Micro
+* Hardware Availability: the PCB is open source and can be freely printed at websites such as [JLCPCB](https://jlcpcb.com/)
+
+### To compile:
+
+`make pimentoso/paddino02/rev2/right:default`
+
+`make pimentoso/paddino02/rev2/left:default`
+
+`make pimentoso/paddino02/rev1:default` (legacy version of the PCB)
+
+### To flash:
+
+`make pimentoso/paddino02/rev2/right:default:flash`
+
+`make pimentoso/paddino02/rev2/left:default:flash`
+
+`make pimentoso/paddino02/rev1:default:flash` (legacy version of the PCB)
+
+### Default keymap
+
+![Keymap](https://raw.githubusercontent.com/Pimentoso/qmk_firmware/master/keyboards/pimentoso/paddino02/keymap.png)
+
+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).