New Features
- clean the docstring for `split_by_newline` ([10](https://github.com/deven367/clean_plot/issues/10))
- refactor loader ([9](https://github.com/deven367/clean_plot/issues/9))
Bugs Squashed
- fix out of bounds error for heatmaps ([8](https://github.com/deven367/clean_plot/issues/8))
- test bug ([7](https://github.com/deven367/clean_plot/issues/7))
- separate folders for std ts ([6](https://github.com/deven367/clean_plot/issues/6))