Merge branch 'dev' into next

src/datetime-picker/README.md

@@ -295,7 +295,7 @@ Following props are supported when the type is time
 
 ### Methods
 
-Use [ref](https://vuejs.org/v2/api/#ref) to get DatetimePicker instance and call instance methods
+Use [ref](https://vuejs.org/v2/api/#ref) to get DatetimePicker instance and call instance methods.
 
 | Name               | Description         | Attribute | Return value |
 | ------------------ | ------------------- | --------- | ------------ |

src/datetime-picker/README.zh-CN.md

@@ -304,7 +304,7 @@ export default {
 
 ### 方法
 
-通过 ref 可以获取到 DatetimePicker 实例并调用实例方法，详见[组件实例方法](#/zh-CN/quickstart#zu-jian-shi-li-fang-fa)
+通过 ref 可以获取到 DatetimePicker 实例并调用实例方法，详见[组件实例方法](#/zh-CN/quickstart#zu-jian-shi-li-fang-fa)。
 
 | 方法名 | 说明 | 参数 | 返回值 |
 | --- | --- | --- | --- |