add scd31 org and rcade display adapter

Author: n3tcat

1209/4FB3/index.md

@@ -0,0 +1,9 @@
+---
+layout: pid
+title: RCade Display Adapter
+owner: scd31
+license: MIT
+site: https://www.scd31.com/posts/building-an-arcade-display-adapter
+source: https://gitlab.scd31.com/stephen/stm32-usb-vga-adapter-hardware
+---
+This is a USB display adapter that implements the GUD protocol and is designed to drive 16kHz arcade CRTs. It is very similar to a generic VGA adapter although it can run at much slower clock speeds.

org/scd31/index.md

@@ -0,0 +1,6 @@
+---
+layout: org
+title: scd31
+site: https://www.scd31.com
+---
+scd31 is just a silly cat that loves to meow and develop open source hardware and software :3