Update mizu.json

domains/mizu.json

@@ -3,7 +3,7 @@
     "repo": "https://github.com/miyagawamizu/miyagawamizu.github.io",
     "owner": {
         "username": "miyagawamizu",
-        "email": "",
+        "email": "miyagawamizu@gmail.com",
         "twitter": "miyagawamizu",
         "discord": "Mizu#2203",
         "facebook": "miygawamizu"
@@ -11,4 +11,4 @@
     "record": {
         "CNAME": "miyagawamizu.github.io"
     }
-} 
+}