Adding prettier to standardize file formatting

[lancegliser]

Trying to get my head around the changes for #76 I kept reaching for my formatting tool. Ended up applying it over there, but adding a formatting is more appropriate in its own stand alone PR first so we can avoid reviewing format and focus on substance in that branch.

No functional changes have been applied in this branch.

[ca98am79]

I believe this was merged with your other pull request, thank you