!5495 【轻量级 PR】：【OpenHarmony开源贡献者计划2022】[英文]TS API相关格式及表达问题

Merge pull request !5495 from king_he/N/A

en/application-dev/reference/arkui-ts/ts-container-flex.md

 # Flex
 
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**<br/>
+> **NOTE**<br/>
 > This component is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
 
 
-The **\<Flex>** component allows for an elastic layout.
+The **\<Flex>** component allows for elastic layout of child components.
 
 
 ## Required Permissions