update readme

README.md

@@ -1,20 +1,39 @@
 # caenhv
 
+[![PyPI version](https://badge.fury.io/py/caenhv.svg)](https://badge.fury.io/py/caenhv)
+[![Build and Test](https://github.com/lobis/caen-hv/actions/workflows/build-test.yml/badge.svg)](https://github.com/lobis/caen-hv/actions/workflows/build-test.yml)
+![PyPI - Python Version](https://img.shields.io/pypi/pyversions/caen-hv)
+
 ## 🤔 What is this?
 
 This is an unofficial Python package to interface with CAEN high voltage power supplies over USB (RS232 protocol).
 
-
 ## ⚠️ Disclaimer
 
 The features of this package are based on my needs at the time of writing.
-I have done very limited testing on a single model (DT1471ET) but it should also work for other CAEN power supplies also supporting RS232.
+I have done very limited testing on a single model (DT1471ET) but it should also work for other CAEN power supplies also
+supporting RS232.
 
 If you use this package, it is very possible you find a bug or some oversight.
 You are encouraged to make a [pull request](https://github.com/lobis/caen-hv/pulls) or to create
 an [issue](https://github.com/lobis/caen-hv/issues) to report a bug, to request additional features or to suggest
 improvements.
 
+## ⚙️ Installation
+
+Installation via `pip` is supported.
+To install the latest [published version](https://github.com/lobis/lecroy-scope/releases), run:
+
+```bash
+pip install caenhv
+```
+
+To install the package from source, including test dependencies, clone the repository and run:
+
+```bash
+pip install .[test]
+```
+
 ## 👨‍💻 Usage
 
 ```python
@@ -38,6 +57,5 @@ channel.off()
 channel.on()
 
 # set a new value of 'vset'
-channel.vset = 300.0 # 300 V
+channel.vset = 300.0  # 300 V
 ```
-