Add migration.is-cool.dev.json for internal testing

domains/migration.is-cool.dev.json

@@ -0,0 +1,10 @@
+{
+    "description": "INTERNAL TEST",
+    "domain": "is-cool.dev",
+    "subdomain": "migration",
+    "owner": {
+      "email": "andrew@open-domains.net"
+    },
+    "record": {
+      "A": ["153.92.208.196"],
+    }