docs: Fix spelling mistake (#2426)

Author: timothyjohn2015

docs/quickstart.md

@@ -67,7 +67,7 @@ If you don't like `npm` or have trouble installing the tool, you can manually cr
 
 ?> Note that in both of the examples below, docsify URLs will need to be manually updated when a new major version of docsify is released (e.g. `v4.x.x` => `v5.x.x`). Check the docsify website periodically to see if a new major version has been released.
 
-Specifying a major version in the URL (`@4`) will allow your site will receive non-breaking enhancements (i.e. "minor" updates) and bug fixes (i.e. "patch" updates) automatically. This is the recommended way to load docsify resources.
+Specifying a major version in the URL (`@4`) will allow your site to receive non-breaking enhancements (i.e. "minor" updates) and bug fixes (i.e. "patch" updates) automatically. This is the recommended way to load docsify resources.
 
 ```html
 <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify@4/themes/vue.css" />