Add new keyboard "Ergomirage" (#20655)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/takashicompany/ergomirage/readme.md

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+# takashicompany/ergomirage
+
+![takashicompany/ergomirage](https://i.imgur.com/PbaRAn8h.jpg)
+
+Ergomirage (Ergo-Mirage) is a 44-key Tron-inspired keyboard.  
+Although the layout is distinctive, we aimed for a key layout that fits the shape of the human hand.  
+The key layout is such that the keys can be typed by moving the fingers vertically.  
+
+The PCB is as space-saving as possible and has a transparent design that looks like hand-wired.  
+Combined with a transparent acrylic case, it can create a space where only the keys seem to float.  
+
+Ergomirage(Ergo-Mirage)は44キーのTron配列に影響を受けたキーボードです。  
+特徴的なレイアウトですが、人間の手のカタチに合うようなキー配列を目指しました。  
+指を縦方向を動かすことで打鍵が可能なキー配置になっています。  
+
+PCBは可能な限りの省スペース化がされており、まるでHand-wiredのような透明感のあるデザインとなっております。  
+透明なアクリルケースと組み合わせることで、キーだけが浮き出るような空間を演出することができます。  
+
+* Keyboard Maintainer: [takashicompany](https://github.com/takashicompany)
+* Hardware Supported: Ergomirage PCB, Pro Micro
+* Hardware Availability: https://github.com/takashicompany/ergomirage
+
+Make example for this keyboard (after setting up your build environment):
+
+    make takashicompany/ergomirage:default
+
+Flashing example for this keyboard:
+
+    make takashicompany/ergomirage: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 the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available