[Keyboard] Rotr (#9546)

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Edited code to fix the formatting so that it follows the conventions.

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* Update config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/kb.h

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* Update keyboards/rotr/kb.c

* Delete Makefile

* Rename kb.c to rotr.c

* Rename kb.h to rotr.h

* Update rules.mk

* Rename README.md to readme.md

* Create info.json

* Update keyboards/rotr/keymaps/default/keymap.c

* Update keyboards/rotr/readme.md

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* Update keyboards/rotr/readme.md

keyboards/rotr/readme.md

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+# ROTR
+
+![ROTR](https://i.imgur.com/051liRCl.jpg)
+
+A macro pad with a multipurpose knob.
+
+* Keyboard Maintainer: [kwlodarczyk](https://github.com/kwlodarczy)
+* Hardware: [Geekhack](https://geekhack.org/index.php?topic=107104.0)
+
+## Features:
+* Minimal design with plug and play functionality.
+* Frictionless, solid brass knob.
+* Hot swappable switches.
+* USB C connection.
+
+Make example for this keyboard (after setting up your build environment):
+
+    make rotr:default
+
+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).