update changelog

CHANGELOG.en-US.md

@@ -20,7 +20,7 @@ timeline: true
 `2018-10-27`
 
 - 🌟 Improve util function `getScroll` TypeScript definition. [#12784](https://github.com/ant-design/ant-design/pull/12784) [@ztplz](https://github.com/ztplz)
-- 🐞 Fixed Checkbox under group not trigger `onChange`. [#12642](https://github.com/ant-design/ant-design/issues/12642)
+- 🐞 Fixed that Checkbox inside CheckboxGroup do not trigger `onChange`. [#12642](https://github.com/ant-design/ant-design/issues/12642)
 - 🐞 Fixed Calendar month picker not correct when set with `validRange`. [#12675](https://github.com/ant-design/ant-design/issues/12675)
 - 🐞 Fixed multiple Select drop-down bug when set `dropdownMatchSelectWidth`. [#12816](https://github.com/ant-design/ant-design/pull/12816) [@hengkx](https://github.com/hengkx)
 - 🐞 Fixed Card title overflow bug. [#12680](https://github.com/ant-design/ant-design/issues/12680)

CHANGELOG.zh-CN.md

@@ -20,7 +20,7 @@ timeline: true
 `2018-10-27`
 
 - 🌟 完善工具方法 `getScroll` 的 TypeScript 定义。[#12784](https://github.com/ant-design/ant-design/pull/12784) [@ztplz](https://github.com/ztplz)
-- 🐞 修复 Checkbox 没有触发 `onChange` 的问题。[#12642](https://github.com/ant-design/ant-design/issues/12642)
+- 🐞 修复 CheckboxGroup 内 Checkbox 没有触发 `onChange` 的问题。[#12642](https://github.com/ant-design/ant-design/issues/12642)
 - 🐞 修复 Calendar 组件设置 `validRange` 后选择月份时的问题。[#12675](https://github.com/ant-design/ant-design/issues/12675)
 - 🐞 修复 Select 组件设置了 `dropdownMatchSelectWidth` 后多选下拉框的问题。[#12816](https://github.com/ant-design/ant-design/pull/12816) [@hengkx](https://github.com/hengkx)
 - 🐞 修复 Card 标题可能会被覆盖的问题。[#12680](https://github.com/ant-design/ant-design/issues/12680)