Add testable examples

[EmilGeorgiev]

Testable example are a great way to provide executable documentation for the code. They serve as both documentation and tests, demonstrating how to use the code in real-world scenarios.

The project has e2e tests which validate the behaviour of the components as a whole and can be used as an example to understand more about how the code is working. But it's still beneficial to include testable examples. because they focus on specific functionalities or APIs, providing focused and targeted documentation. They can complement e2e tests by offering developers quick and easy-to-understand examples of how to use individual components or functions.

https://go.dev/blog/examples