Add bjornjonker.json with domain owner details

domains/bjornjonker.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "Override4life",
+    "email": "bjornjonkerdronten@gmail.com"
+  },
+  "records": {
+    "CNAME": "portfolio-2eyf.onrender.com"
+  }
+}