Added new contribution (#1876)

Co-authored-by: Sophie Zhang <[email protected]>

Author: ch00ooch00oo

content/videos/challenges/181-image-stippling/showcase/contribution-1752998310.json

@@ -0,0 +1,9 @@
+{
+  "title": "Voronoi Playground",
+  "author": {
+    "name": "Sophie Zhang"
+  },
+  "url": "https://github.com/smallwhale1/voronoi-stippling",
+  "submittedOn": "2025-07-20T07:58:31.298Z",
+  "socialPermission": true
+}