更新README.md中datasheet链接

LikWoody · LikWoody · commit f0dba4985034 · 2021-09-15T08:31:18.000+08:00
diff --git a/bsp/swm320/README.md b/bsp/swm320/README.md
@@ -166,4 +166,4 @@ msh />
 
 * [RT-Thread 文档中心](https://www.rt-thread.org/document/site/)
 
-* [SWM320数据手册](http://www.synwit.cn/support-1/3.html)
+* [SWM320数据手册](https://www.synwit.cn/col.jsp?id=155)

Original file line number	Diff line number	Diff line change
`@@ -166,4 +166,4 @@ msh />`
`166`	`166`
`167`	`167`	`* [RT-Thread 文档中心](https://www.rt-thread.org/document/site/)`
`168`	`168`
`169`		`-* [SWM320数据手册](http://www.synwit.cn/support-1/3.html)`
	`169`	`+* [SWM320数据手册](https://www.synwit.cn/col.jsp?id=155)`