Firstly clone repository to your computer
git clone https://github.com/frankofil/Librus-message-reader.git
Go to downloaded folder and install additional packages
pip install -r requirements.txt
In file librus.py change driverPath to your selenium webdriver path
driverPath = r'your\path\to\webdriver\chromedriver.exe'
And now you are good to go. To run program simply run
python script.py