As zjk says, you can use restview:
restview is available from the Python Package Index: http://pypi.python.org/pypi/restview. You can also pip install restview.
Here is what I did to test it out using a virtual environment:
mkdir restview
cd restview/
virtualenv-2.7 venv # The second system I used just used 'virtualenv venv'
./venv/bin/pip install restview
./venv/bin/restview ~/path/MANUAL.rst
This launched a web server and opened the documentation page in my browser.
Note: I only used virtualenv because I don't like installing things globally. It may be overkill for many others, but I also have better luck with these one-off environemnets. When I tried pip install restview
on an Ubuntu 14.04 VM it failed, whereas the approach above worked like a charm for me on that system as well as this one.