Fix email format in sanatan.json

domains/sanatan.json

@@ -1,9 +1,9 @@
 {
     "owner": {
         "username": "sanatan223",
-        "email": "[sanatan_dev+github@outlook.com]"
+        "email": "sanatan_dev+github@outlook.com"
     },
     "records": {
         "A": ["216.198.79.1"]
     }
-}
+}