Add TypeScript Example

[Keimeno]

I've noticed that there is only a JavaScript example for sequelize that is also quite old, but there's none for TypeScript. And I am currently working on an open source project which uses sequelize 6.2.3. I believe it could be a example on how to use sequelize in a functional way. Here's the repository. However it might need a bit tweaking until it's usable.

[papb]

Thanks for the suggestion, I plan to revamp this repository in the near future, I will look into it, thank you!

[papb]

Hello! Just to give an update: I have rewritten the example. In the near future I hope to add a TypeScript example as well.