Create ankitnegi.json for portfolio information

Added a JSON file for personal portfolio details.

domains/ankitnegi.json

@@ -0,0 +1,11 @@
+{
+  "description": "My personal portfolio",
+  "repo": "https://github.com/ankitnegi-dev/portfolio",
+  "owner": {
+    "username": "ankitnegi-dev",
+    "email": "negiank007@gmail.com"
+  },
+  "record": {
+    "CNAME": "portfolio-nu-amber-sg31cyo8d3.vercel.app"
+  }
+}