Add warning to README.md

f57d8f26 · Florian Kempenich · da72d406 · f57d8f26
Commit f57d8f26 authored Apr 12, 2018 by Florian Kempenich
--- a/README.md
+++ b/README.md

 TBD

+> ## Important Note
+> Use a **python 2** virtualenv. 
+> Not compatible with **python 3** for now
+
 ## Installation

 ```