(fix) Typos

Author: pauby

ABOUT.md

@@ -6,7 +6,7 @@ Chocolatey GUI, formerly known as Chocolatey Explorer or Chocolatey PackageManag
 * [Making a chocolatey package for Chocolatey GUI](http://blogs.lessthandot.com/index.php/DesktopDev/MSTech/making-a-chocolatey-package/)
 * [Chocolatey GUI](http://blogs.lessthandot.com/index.php/DesktopDev/MSTech/chocolatey-gui/)
 
-In 2013, Christiaan handed over maintainance of Chocolatey GUI to [Gary Ewan Park](http://www.gep13.co.uk/about/), who later, under the supervision of [Rob Reynolds](https://twitter.com/ferventcoder) (creator of [Chocolatey](https://chocolatey.org/)), brought the application under the main Chocolatey Organisation on [GitHub](https://github.com/chocolatey).
+In 2013, Christiaan handed over maintenance of Chocolatey GUI to [Gary Ewan Park](http://www.gep13.co.uk/about/), who later, under the supervision of [Rob Reynolds](https://twitter.com/ferventcoder) (creator of [Chocolatey](https://chocolatey.org/)), brought the application under the main Chocolatey Organisation on [GitHub](https://github.com/chocolatey).
 
 Since then, with a set of major contributions from [Richard Simpson](https://twitter.com/richardsimp), Chocolatey GUI has changed from a Windows Forms application to a WPF application, with a much richer User Interface.