Update and rename your-domain-name.json to centi.is-a.dev.json

domains/centi.is-a.dev.json

@@ -0,0 +1,12 @@
+{
+    "description": "My personal portfolio",
+    "repo": "https://github.com/nCenti/portfolio",
+    "owner": {
+        "username": "nCenti",
+        "email": "contactocenti@gmail.com",
+        "twitter": "Centifn"
+    },
+    "record": {
+        "CNAME": "nCenti.github.io"
+    }
+} 

domains/your-domain-name.json

@@ -1 +0,0 @@
-centi.is-a.dev