Add modather.json for domain configuration

domains/modather.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "ModatherAli",
+    "email": "modather0ali@gmail.com"
+  },
+  "records": {
+    "CNAME": "modather.pages.dev"
+  }
+}