To install, use pip (or easy_install):

$ pip install sphinx-reload

The package installs the command-line program sphinx-reload:

$ sphinx-reload --version
v0.2.0

To begin live previewing your documentation, simply pass the path of your documentation's root as a command-line argument with sphinx-reload. Here's an example assuming your documentation's root is under the current directory and named docs:

$ sphinx-reload docs/

sphinx-reload will open a preview in a new tab of your favorite browser and watch for changes in your documentation's source files (e.g., any reStructuredText files under the documentation's root).

To view further usage details, use the script's --help option:

$ sphinx-reload --help