Updated readme.md with binder link.

README.md

@@ -5,7 +5,17 @@ A jupyter notebook about how to use **Trepan** to explain a black-box model.
 * The Jupyter Notebook is available at: [A demonstration of running Trepan](https://gist.github.com/sverchkov/c87b301db1b88e0f4cc8bb7d77b889b9) 
 * Python package: [**Craven-Biostat-Lab/generalizedtrees**](https://github.com/Craven-Biostat-Lab/generalizedtrees): Library for tree models: decision trees, model trees, mimic models, etc. 
 
-## Author
+## Prerequisites
+* Python 3.8.x
+* Package generalizedtrees==1.1.0
+
+see requirements.txt
+
+## Start in Binder
+
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/git/https%3A%2F%2Fgitlab.rz.uni-bamberg.de%2Fcogsys%2Fpublic%2Fki-campus%2Ftrepan-jupyter-notebook/HEAD?filepath=trepan-demo.ipynb)
+
+## Authors
 
 Yuri Sverchkov, https://www.biostat.wisc.edu/~yuriy/
 
@@ -17,9 +27,10 @@ This work is licensed under Creative Commons Attribution 4.0 International Licen
 https://creativecommons.org/licenses/by/4.0/
 
 
-## Start in Binder
 
-[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/git/https%3A%2F%2Fgitlab.rz.uni-bamberg.de%2Fcogsys%2Fpublic%2Fki-campus%2Ftrepan-jupyter-notebook/HEAD?filepath=trepan-demo.ipynb)
+
+
+