Make the new README less annoying.

Author: balthisar

README.md

@@ -1,5 +1,9 @@
 # HTML Tidy with HTML5 support
 
-All READMEs and related materials have been relocated into README/.
+All READMEs and related materials have been relocated into [README/][1].
 
-For build instructions please see README/README.md.
+For build instructions please see [README/README.md][2].
+
+ [1]: https://github.com/htacg/tidy-html5/tree/master/README
+ [2]:https://github.com/htacg/tidy-html5/blob/master/README/README.md
+