Improvements

[pyuscherbakov]

Hi! First of all, I want to thank you for this product, which gave me the opportunity to structure test cases in the project.

I have a few suggestions:

1. Repetitive steps. Saving frequently repeated steps with the possibility of reusing them in test examples. It would be great if all the changes made to these steps were also applied to the test case using these steps.
2. Markdown support for the documentation section

[ENG3PLabs]

I suggest splitting these feature requests into separate issues so they can be worked on independently.