update README

README.md

 # promod3_pipeline_benchmark
 
-Benchmark pipelines for the ProMod3 modelling engine
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+This repository contains code and data to reproduce the figures and tables 
+from the benchmarking efforts in the manuscript: 
+"ProMod3 - A versatile homology modelling toolbox".
+
+The *modelling*, *loop*, *sidechain* and *other* directories contain detailed
+instructions on how to reproduce the numbers and figures.
+
+You need an OpenStructure and ProMod3 installation to run the scripts, 
+more specifically you need the *ost* and *pm* executables in your path.
+Furthermore you need the numpy, scipy and matplotlib Python modules. 
+