Merge pull request #18063 from thiennguyen93/patch-1

Create thien.json - Register `thien.is-a.dev` sub-domain

domains/thien.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "thiennguyen93",
+        "email": "hi@thiennguyen.dev"
+    },
+    "record": {
+        "CNAME": "thiennguyen93.github.io"
+    }
+}