1. Edit _pages/*.
2. git add PATH [PATH]
3. git commit
4. git push
5. View http://docs.cs50.net/path/to/file.html after a few seconds.

If your changes do not affect the rendered files under _site/ (e.g., changes to .gitignore), be sure to include [skip ci] in the message of the last commit before you push to avoid triggering a build, which would fail, as there would be no changes to deploy.

1. Install Docker Engine.
2. sudo pip install cli50
3. cd docs
4. cli50
5. make
6. View _site/*.