Minor bug fixes

Fixing minor bugs preventing installation

Corrected README

Merge pull request #8 from AlexStead/local

Correction to readme

Merge pull request #4 from AlexStead/local

Update CITATION.cff

Merge pull request #3 from AlexStead/local

Added in the normal-Rayleigh model

Merge pull request #6 from AlexStead/local

Added in DOI

Merge pull request #5 from AlexStead/local

Update CITATION.cff

Update README.md