Add nikhilrathore.json for portfolio configuration

i have my portfolio that i want with is a dev

nikhilrathore.json

@@ -0,0 +1,10 @@
+{
+  "description": "Nikhil's Portfolio",
+  "repo": "https://github.com/nikhilrathore1997/nikhilrathore1997",
+  "owner": {
+    "username": "nikhilrathore1997"
+  },
+  "records": {
+    "CNAME": "nikhilrathore1997.github.io"
+  }
+}