Release v0.1.8

Make some minor changes to do with installation in the README

Release v0.1.7

• Fix typo in README

Release v0.1.6

• Add documentation to README
• Edit help messages for clarity

Release v0.1.5

• Add numpy and pandas to setup.py requirements

Release v0.1.4

Change source of entry points in setup.py.

Release v0.1.3

First test of the release action.