Add rounjiri.json with domain owner and record

domains/rounjiri.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "seijiashiro",
+    "email": "jirkaroun12@gmail.com"
+  },
+  "record": {
+    "CNAME": "webpage-2035d9.gitlab.io"
+  }
+}