Update README.md

Author: KyleAMathews

packages/gatsby-plugin-netlify/README.md

@@ -129,4 +129,4 @@ You can also create a `_redirects` file in the `static` folder for the same affe
 You can validate the `_redirects` config through the
 [Netlify playground app](https://play.netlify.com/redirects).
 
-Redirect rules are automaticly added for [client only paths](/docs/building-apps-with-gatsby/#client-only-routes). If those rules are conflicting with custom rules or if you want to have more control over them you can disable them in [configuration](#configuration) by setting `generateMatchPathRewrites` to `false`.
+Redirect rules are automatically added for [client only paths](/docs/building-apps-with-gatsby/#client-only-routes). If those rules are conflicting with custom rules or if you want to have more control over them you can disable them in [configuration](#configuration) by setting `generateMatchPathRewrites` to `false`.