Intro and links
Hyndman: https://otexts.com/fpp2/
https://www.econometrics-with-r.org/index.html
https://machinelearningmastery.com/time-series-forecasting-methods-in-python-cheat-sheet/
https://structural-time-series.fastforwardlabs.com/?utm_campaign=Data_Elixir&utm_source=Data_Elixir_309