update changelog

CHANGELOG.en-US.md

@@ -87,6 +87,8 @@ The following change will throw some warnings in the console and it will still w
   +  )}
   ```
 
+  Look up to [#1533](https://github.com/ant-design/ant-design/issues/1533) for related discussion.
+
 * `toggleOpen` of DatePicker is deprecated, please use `onOpenChange`:
 
   ```diff

CHANGELOG.zh-CN.md

@@ -86,6 +86,8 @@ timeline: true
   +  )}
   ```
 
+  相关讨论可以看 [#1533](https://github.com/ant-design/ant-design/issues/1533)。
+
 * DatePicker 废弃 `toggleOpen`，请使用 `onOpenChange`：
 
   ```diff