docs: fix missing git prefix for pip install
- Adds missing 'git+' prefix for pip install.
- Rewords slightly to clarify difference between installing from PyPI and GitHub.
Signed-off-by: Dan Michael O. Heggø <danmichaelo@gmail.com>
Dan Michael O. Heggø <danmichaelo@gmail.com> | Apr 28 2015, 13:02 |