Remove python 2 from readme
@@ -59,7 +59,7 @@ Installation
============
HoloViews works with
-[Python 2.7 and Python 3](https://github.com/holoviz/holoviews/actions?query=workflow%3Apytest)
+[Python 3](https://github.com/holoviz/holoviews/actions?query=workflow%3Apytest)
on Linux, Windows, or Mac, and works seamlessly with
[Jupyter Notebook and JupyterLab](https://jupyter.org).
