Add jnxjuno.json with domain owner and record

domains/jnxjuno.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "JNxJuno",
+    "email": "mjurijm125@gmail.com"
+  },
+  "record": {
+    "CNAME": "jnxjuno.github.io"
+  }
+}