Add willhan.is-a.dev record.

domains/willhan.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "xingheng",
+    "email": "xingheng.hax@qq.com"
+  },
+  "records": {
+    "URL": "https://github.com/xingheng"
+  }
+}