updated README to point on genfem.org

README.org

 #+TITLE:A simple FEM matrix generator in python
 
 Assembles fem matrices using an efficient vectorization method (see [[http://www.math.univ-paris13.fr/~cuvelier/mainsu3.html#x9-6000.2.3][here]]).
+
+The main file in this repository is [[file:genfem.org][genfem.org]]. 

genfem.org

@@ -5,7 +5,6 @@
 #+PROPERTY: header-args:rst :eval no
 #+STARTUP: showeverything
 #+OPTIONS: tex:imagemagick toc:nil
-#+LaTeX_HEADER: \usepackage{tikz}
 
 This org document can be tangled to produce [[file:genfem.py][this python file]].