Render failures details in rspec failures section

[Ana06]

Could we render the failure example in the rspec details of the failures instead of doing it when running the test? Because currently it is render with puts and pretty_print (https://github.com/hayeah/rantly/blob/edd7289d26171ad6aa9d03e0e4fb67091c09798d/lib/rantly/property.rb#L46) and it breaks the output of the RSpec. For example:

With the default rspec output:

With nyan-cat-formatter gem:

So it would be great if the number of tests run and the example that failed (if it fails) were render in the failures.