Add changelog for 3.0.5

Author: Anders Hedegaard Nielsen

Changelog.md

@@ -1,5 +1,8 @@
 ## Changelog
 
+### 3.0.5
+* Cs translation more correct, thanks @MartkCz
+
 ### 3.0.4
 * Fixed a bug with isLessThan44Min29Secs, thanks @ruben-haegeman
 * Added Polish translations, thanks to @biegacz1
@@ -117,4 +120,4 @@ Added translations (Danish and English) to the plugin.
 Just if you wanted to try out the old "time ago" class, I've kept it in the project.
 It will eventually be deleted, but hey, go have fun with it. Perhaps even extend it etc.
 Bear in mind though, that the new DateTime::diff in PHP version 5.3.0 will eventually
-replace it completely. (PHP 5.3.0 DateTime::diff link: http://www.php.net/manual/en/datetime.diff.php)
+replace it completely. (PHP 5.3.0 DateTime::diff link: http://www.php.net/manual/en/datetime.diff.php)