Fix typo

_posts/2014-01-02-introducing-poole.md

@@ -31,7 +31,7 @@ Additional features are available in individual themes.
 
 ### Browser support
 
-Poole and it's themes are by preference a forward-thinking project. In addition to the latest versions of Chrome, Safari (mobile and desktop), and Firefox, it is only compatible with Internet Explorer 9 and above.
+Poole and its themes are by preference a forward-thinking project. In addition to the latest versions of Chrome, Safari (mobile and desktop), and Firefox, it is only compatible with Internet Explorer 9 and above.
 
 ### Download