Fix markdown link in blog post

Author: dustinsoftware

site/jekyll/_posts/2019-01-16-4.0.0-release.md

@@ -13,7 +13,7 @@ This release brings a few new features:
 -   Javascript engines are no longer automatically registered. See the getting started pages on [.NET Framework](https://reactjs.net/getting-started/aspnet.html) and [.NET Core](https://reactjs.net/getting-started/aspnetcore.html) for more information about how to register a specific Javascript engine in your app.
     -   JavaScriptEngineSwitcher and JSPool have been updated as a part of this change.
     -   Further reading for JavaScriptEngineSwitcher: [How to upgrade applications to version 3.X](https://github.com/Taritsyn/JavaScriptEngineSwitcher/wiki/How-to-upgrade-applications-to-version-3.X)
--   Support for faster Javascript engine initialization via the [`AllowJavaScriptPrecomplilation`] setting(https://github.com/reactjs/React.NET/commit/4ff0fad26557817ffdf31e4de7ba98bccd1645ac)
+-   Support for faster Javascript engine initialization via the [`AllowJavaScriptPrecomplilation`](https://github.com/reactjs/React.NET/commit/4ff0fad26557817ffdf31e4de7ba98bccd1645ac) setting
 -   Server side rendering support for
     -   [React Router](https://reactjs.net/features/react-router.html)
     -   [React Helmet](https://reactjs.net/features/react-helmet.html)