chore: update vercel link

sy-records · sy-records · commit 2b7f35d48f1e · 2022-03-19T12:00:01.000+08:00
diff --git a/docs/README.md b/docs/README.md
@@ -35,4 +35,4 @@ Users and the development team are usually in the [Discord server](https://disco
 
 _Vercel_ has given us a Pro account.
 
-<a href="https://vercel.com/?utm_source=docsifyjsdocs" target="_blank"><img src="https://cdn.jsdelivr.net/gh/docsifyjs/docsify/docs/_media/vercel_logo.svg" width="100px"></a>
+<a href="https://vercel.com/?utm_source=docsifyjs&utm_campaign=oss" target="_blank"><img src="https://cdn.jsdelivr.net/gh/docsifyjs/docsify/docs/_media/vercel_logo.svg" width="100px"></a>

Original file line number	Diff line number	Diff line change
`@@ -35,4 +35,4 @@ Users and the development team are usually in the [Discord server](https://disco`
`35`	`35`
`36`	`36`	`_Vercel_ has given us a Pro account.`
`37`	`37`
`38`		`-<a href="https://vercel.com/?utm_source=docsifyjsdocs" target="_blank"><img src="https://cdn.jsdelivr.net/gh/docsifyjs/docsify/docs/_media/vercel_logo.svg" width="100px"></a>`
	`38`	`+<a href="https://vercel.com/?utm_source=docsifyjs&utm_campaign=oss" target="_blank"><img src="https://cdn.jsdelivr.net/gh/docsifyjs/docsify/docs/_media/vercel_logo.svg" width="100px"></a>`