Add function generator and validator to gallery (#1807)

website/src/data/gallery.json

@@ -1,4 +1,11 @@
 [
+  {
+    "title": "Function Generator & Validator",
+    "link": "https://github.com/abhaymathur21/TensionCode",
+    "description": "A platform where user-required code is generated and simultaneously validated against sample data by AutoGen.",
+    "image": "TensionCode.png",
+    "tags": ["app", "ui"]
+  },
   {
     "title": "Autogen Robot",
     "link": "https://github.com/AaronWard/generative-ai-workbook/tree/main/personal_projects/19.autogen-robot",