Update README.md

README.md

@@ -5,14 +5,16 @@ you want to include.
 Code is based on the work and partially copied from 
 https://github.com/BDuenweg/Lattice-Boltzmann-weights
 
-## Installation of MyLBM
+## Installation
 
     $ git clone this repository
     $ virtualenv env
     $ source env/bin/activate
     $ pip install ./lbmweights 
     
-## Execution:
-    $ from lbmweights impor Lattice
-    $ lattice = Lattice(dimension=2, order=4, shell_list=[1,2,4])
-    $ lattice.calculate_weights()
+## Usage:
+``` Python
+from lattice import Lattice
+lattice = Lattice(dimension=2, order=4, shell_list=[1,2,4])
+weights = lattice.calculate_weights()
+```
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