v0.2.1

Features

• modules: added roles module (w/ assign and unassign functions) (ae787ea)

Documentation

• readme: added code coverage shield (35a7e19)
• initialised docs with VuePress (2690b73)
• added docs (using VuePress) (0319af3)

Refactors

• module-related class properties are now readonly (efe56d7)