Add Rahoot (#2299)

Co-authored-by: kokomo123 <70863536+kokomo123@users.noreply.github.com>

Author: Lindwen

software/rahoot.yml

@@ -0,0 +1,11 @@
+name: "Rahoot"
+website_url: "https://github.com/Ralex91/Rahoot"
+source_code_url: "https://github.com/Ralex91/Rahoot"
+description: "Quiz game platform, clone of Kahoot!, designed for smaller self-hosted events (alternative to Kahoot!)."
+licenses:
+  - MIT
+platforms:
+  - Nodejs
+  - Docker
+tags:
+  - Games