provide example to use the chart

It would be great to have couple of examples to use the chart in general without having to go through all docs and attributes to make it work

Start by reviewing the existing documentation and chart usage examples in the repository, since the issue does not name a file or chart. Add a couple of general examples showing how to use the chart without requiring readers to inspect every attribute, and verify that the examples are understandable and complete.

Written by the indexing model from the issue text.