Understanding Redux: The World’s Easiest Guide to Beginning Redux
https://medium.freecodecamp.org/understanding-redux-the-worlds-easiest-guide-to-beginning-redux-c695f45546f6
1. ONE application STATE OBJECT managed by ONE STORE.
1 часть https://daveceddia.com/what-does-redux-do/
2 часть https://daveceddia.com/how-does-redux-work/