Use docker to host a local html file with nginx!

docker_demo.sh

# What is it? Use docker to host an html file using nginx!
# Pre-requisites: You've installed docker and logged into docker-hub

#make our html file
echo "<h1>Hello world</h1>" > index.html

#start docker and mount our current working directory into nginx
docker run -p 80:80 -v "$(PWD)":/usr/share/nginx/html:ro -d nginx

#go have a look!
open http://localhost

#make some changes to the HTML file in the host and reload to see your changes in real-time