Replace the mention of Transmuter with Pandoc

Author: bbatsov

README.md

@@ -30,7 +30,7 @@ Please note, that the Clojure developing community maintains a list of
 too.
 
 You can generate a PDF or an HTML copy of this guide using
-[Transmuter](https://github.com/TechnoGate/transmuter).
+[Pandoc](http://pandoc.org/).
 
 Translations of the guide are available in the following languages: