Minor fixes and improved docs on WAIC based model comparison that was brought in with [version 1.7].(https://github.com/drbenvincent/delay-discounting-analysis/releases/tag/v1.7)
- update to WAIC model comparison page which includes model comparison YouTube video by McElreath.
- additional Discussion in docs on Counter-intuitive aspects of model complexity
- improved code commenting in the new WAIC class