[README] Update Python 2 EOL notice

Author: mpsonntag

README.md

@@ -101,7 +101,9 @@ release notes](https://github.com/G-Node/python-odml/releases).
 
 ## Previous Python versions
 
-Python 2 has reached end of life. We will not keep any future versions of odml Python 2 compatible and will drop support for Python 2 with August 2020. We also recommend using a Python version >= 3.7. If a Python version < 3.7 is a requirement, the following dependency needs to be installed as well:
+Python 2 has reached end of life. Current and future versions of odml are not Python 2 compatible. We removed support 
+for Python 2 in August 2020 with version 1.5.2. We also recommend using a Python version >= 3.7. If a 
+Python version < 3.7 is a requirement, the following dependency needs to be installed as well:
 
 * pip install
   * enum34 (version 0.4.4)