Add split-ergo keyboard.

Author: mmmaisel

1209/554E/index.md

@@ -0,0 +1,10 @@
+---
+layout: pid
+title: Split-Ergo Keyboard
+owner: mmmaisel
+license: CERN-OHL-S-2.0-or-later and GPL-3.0-or-later
+site: https://codeberg.org/mmmaisel/Keyboard
+source: https://codeberg.org/mmmaisel/Keyboard
+---
+An Open-Source and Open-Hardware full-size modular keyboard with
+mechanical keys, an ergonomic key layout and RGB.