Added domain for yujia.

domains/yujia.json

@@ -0,0 +1,12 @@
+{
+    "description": "Yujia's Magic",
+    "repo": "https://github.com/YujiaY",
+    "owner": {
+        "username": "YujiaY",
+        "email": "aujackyuan@gmail.com"
+    },
+    "record": {
+        "CNAME": "YujiaY.github.io",
+        "URL": "https://yujia.is-a.dev"
+    }
+}