[Keyboard] zErgo handwired (#9990)

* Create readme.md

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* Create info.json

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* Update and rename kb.c to zergo.c

* Rename kb.h to zergo.h

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* Update keymap.c

* Update config.h

* Update zergo.c

* Update zergo.h

* Update rules.mk

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* Rename Makefile to makefile

* Update zergo.c

* Update zergo.h

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* Update config.h

* Update zergo.h

* Update rules.mk

* Update rules.mk

* Update config.h

* Update keyboards/handwired/zergo/keymap.c

* Update keyboards/handwired/zergo/keymap.c

* Update keyboards/handwired/zergo/zergo.h

* Update keyboards/handwired/zergo/keymap.c

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* Update keyboards/handwired/zergo/rules.mk

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keyboards/handwired/zergo/readme.md

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+# zErgo
+
+![Imgur](https://i.imgur.com/XbyhGeY.png)
+
+A compact 70% (15x6) keyboard inspired by the Katana60 project, but with F keys and adopted for the Russian layout.
+
+* Keyboard Maintainer: [Greenjack](https://github.com/greenjack-z)
+* Hardware Supported: zErgo PCB, Teensy 2.0++
+* Hardware Availability: prototype self-made hardware
+
+Make example for this keyboard (after setting up your build environment):
+
+    make handwired/zergo:default
+
+Flashing example for this keyboard:
+
+    make handwired/zergo: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).