Update release notes and thanks file

RELEASE_NOTES.md

@@ -27,6 +27,7 @@ Visual Style
 * Fix: Long lines in code block will wrap
 * Fix: Code block will not play nice with line numbers
 * Fix: Subscribe button changes its size on smaller screens
+* Fix: Articles under tag heading on tags page are not sorted 
 
 Optimizations
 -------------

THANKS.md

@@ -36,6 +36,7 @@ Thanks to
 ### Oct 4, 2013
 
 1. He [reported](https://github.com/talha131/pelican-elegant/issues/10) an issue with CSS style of links in an unordered lists.
+1. He [reported](https://github.com/talha131/pelican-elegant/issues/34) that articles list in tags page is not sorted at all. He helped a lot to reproduce the issue and stayed persistent to get it fixed.
 
 ### Oct 1, 2013