Related to [11014](https://github.com/zeit/next.js/issues/11014)
Upgraded all the packages from package.json, removed the saga-wrapper package since it is totally outdated to today's use.
I have refactored the whole example using the new API of the next-redux-wrapper package, using their new support of "getStaticProps".
All of the class components were converted to functional, using the new redux hooks API.
If you want me to change anything or you are not satisfied with any given change, I'm open to suggestions.
* Rename page component's class name: Counter => Index, Counter => Other
* Rename counter component class name: AddCount => Counter
* Add counter actions `decrement` and `reset` same as with-redux example
* Modify page link by NavigateTo attr in Page component
* Modify license MIT => ISC same as others in package.json
* Modify README
