feat(domain): add grusio.is-a.dev

domains/grusio.json

@@ -0,0 +1,10 @@
+{
+    "owner": {
+        "username": "mattiagrusio",
+        "email": "mattiagrusio@gmail.com"
+    },
+
+    "record": {
+        "A": ["2.231.198.113"]
+    }
+}