Update content.json

Author: skymen

src/assets/content.json

@@ -7,6 +7,15 @@
     "description": "A brand new addon framework for Construct 3 that allows you to create addons with ease",
     "status": "In Development"
   },
+  {
+    "name": "Construct 3 UI",
+    "hasRepo": false,
+    "repo": "",
+    "hasWebsite": true,
+    "url": "https://constructfund.github.io/construct3-ui",
+    "description": "Flexbox layout engine for Construct 3 with a CSS-like styling syntax",
+    "status": "In Development"
+  },
   {
     "name": "CAW VS Code extension",
     "hasRepo": true,
@@ -99,4 +108,4 @@
     "description": "A website that references commonly used Construct 2 addons and wether they have been ported yet or not",
     "status": "Legacy"
   }
-]
+]