Update PEG models for new competition

[jessicaguo]

• [x] Update README to JAGS-logistic-growth
• [ ] Follow new directions to obtain data
• [ ] Test submission
• [ ] Schedule meeting with Debasmita and Arun
• [ ] Including the simple forecast model

[jessicaguo]

Zenodo repo is here: https://zenodo.org/record/7114677

[jessicaguo]

Currently the noaa data pulling functions are malfunctioning, so standby

[jessicaguo]

Decided to deprioritize this