Add OpenAI site verification JSON file

domains/_openai-site-verification.jimin.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "j243kim",
+        "email": "rainbow604034@gmail.com"
+    },
+    "records": {
+        "TXT": "openai-site-verification=YpL6rlKAad7AjMBH9UCbQ6KNGNISQ9NRS5HLieF7pYA"
+    }
+}