Github needs .md suffix to recognize markdown :-/

Author: xiaq

README renamed to README.md

@@ -14,5 +14,3 @@ You may want to visit the [original project][2] site.
 [1]: http://www.tclcommunityassociation.org/wub/proceedings/Proceedings-2010/GeorgePetasis/TileQtAndTileGTK.pdf
 
 [2]: http://www.ellogon.org/petasis/tcltk-projects/tilegtk
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