Fix link in WP.org readme

readme.txt

@@ -13,7 +13,7 @@ Simple ways to customize your WordPress build.
 == Description ==
 Simple ways to make admin customizations for WordPress. You know all that brain space you saved for [memorizing hooks](http://wptavern.com/learn-three-wordpress-filters-a-day)? Use it for something better. For example, you can...
 
-* On [GitHub](https://github.com/upstatement/zoneboard)
+* On [GitHub](https://github.com/upstatement/jigsaw)
 
 
 == Installation ==
@@ -39,4 +39,4 @@ Please use the [GitHub repo](https://github.com/upstatement/jigsaw/issues?state=
 * Fixed error in PHP 5.3
 
 = 0.6 =
-* Added column support for users
+* Added column support for users