Worked through adding tests to gganatogram...

Workflow

1. Fork (online)
2. Open in R-Studio - as a git repository
3. Check the build before going forward (devtools::check())
4. Write a test
5. Run tests using R-Studio
6. 19 different tests run today.
7. Check the build again at the end - R-Studio tabs worked
8. Commit in R-Studio
9. Push to Github in R-Studio
10. Create Pull Request online 
11. Feel happy with some high quality coding done :-)

Used R-Studio for it all - advice from here (http://r-bio.github.io/intro-git-rstudio/) very useful.