Update badges

Author: jl-wynen

README.md

@@ -1,6 +1,7 @@
+[![PyPI badge](http://img.shields.io/pypi/v/scippneutron.svg)](https://pypi.python.org/pypi/scippneutron)
 [![Anaconda-Server Badge](https://anaconda.org/scipp/scippneutron/badges/version.svg)](https://anaconda.org/scipp/scippneutron)
 [![License: BSD 3-Clause](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](LICENSE)
-[![Release build](https://github.com/scipp/scipp/actions/workflows/release.yml/badge.svg)](https://github.com/scipp/scippneutron/actions/workflows/release.yml)
+[![Release](https://github.com/scipp/scippneutron/actions/workflows/release.yml/badge.svg)](https://github.com/scipp/scippneutron/actions/workflows/release.yml)
 
 # scippneutron