Mentioning min. Pandoc version

README.md

@@ -4,7 +4,7 @@
 
 Ensure Python (>= 2.7) is installed.
 
-Install Pandoc from <http://johnmacfarlane.net/pandoc/installing.html>
+Install Pandoc >= 1.11.1 from <http://johnmacfarlane.net/pandoc/installing.html>
 
 Install `pdflatex` from <http://www.tug.org/texlive/>.
 Note that Mac users can install `MacTex.pkg` from <http://www.tug.org/mactex/2012/>.