add missing fields

Dtos/UpdateFamilyDto.cs

@@ -10,6 +10,10 @@ namespace weddingapi.Dtos
         [Required]
         public IList<PersonDto> Members { get; init;}
         [Required]
-        public bool Overnight { get; set; }
+        public bool Overnight { get; init; }
+        [Required]
+        public string Email { get; init; }
+        [Required]
+        public string Telephonenumber { get; init; }
     }
 }