shore-config - Add (or update) an example shore project

## Summary

Original Author: @dkirillov
A shore project example should be added to `examples/` directory.

Or, an exist or all existing example projects modified to use the `shore-config` and one example can be made to show \"legacy\" configuration.

## Motivation

## Describe alternatives you've considered

## Additional context

Start by reviewing the existing projects in the examples/ directory and how they currently configure Shore. Define whether to add a shore-config example or update existing examples, with one example retaining legacy configuration; done means the selected example projects demonstrate the intended configuration clearly.

Written by the indexing model from the issue text.