Multiline Description support for params

[SpaskeISO]

Is your feature request related to a problem? Please describe.
I am trying to add a json exaple to a param description but i have no way of adding new lines since the ``` json ``` in swagger UI doesn't support <br> or \n.

Describe the solution you'd like
Adding a field like // @param.description for descriptions

Describe alternatives you've considered
Search for // @description annotation after params for multiline comments
Make generator look for \n in the // @param description and to add a new line every time it finds one in the description section of the parameter

[iredmail]

We're facing the same issue. We'd like to add few sample values in the parameter description to guide users how to use the parameter, it's not good to use just one line for description plus samples.