v0.1.1

GPI2 v0.1.1

Diff since v0.1.0

Merged pull requests:

• Adapt README to GPI2.jl being a registered package (#2) (@sloede)
• Add coverage (#3) (@sloede)
• Add documentation using Documenter.jl (#4) (@sloede)
• Fix documenter (#5) (@sloede)