Create contribution-5.json

Adding my showcase submission for #183 Mathematical Marbling !

Author: bobbykaz

content/videos/challenges/183-mathematical-marbling/showcase/contribution-5.json

@@ -0,0 +1,9 @@
+{
+  "title": "Arcs and Vortices",
+  "url": "https://bobbykaz.com/art/p5/marbling.html",
+  "author": {
+    "name": "Bobby Kazimiroff",
+    "url": "https://bobbykaz.com/"
+  },
+  "submittedOn": "2024-05-11"
+}