Please make sure docker is installed on your machine before running the following https://www.docker.com/
Run the following in the directory where you have pulled the repo. This will run an interactive preview while you make changes
docker run --rm -it -p 8000:8000 -v ${PWD}:/docs squidfunk/mkdocs-material
This can be accessed locally at
http://0.0.0.0:8000/
Below is a version where process is started in the background
docker run --rm -it -p 8000:8000 -v ${PWD}:/docs squidfunk/mkdocs-material