Improve module documentation

Is your feature request related to a problem? Please describe. We started to implement some further module documentation a while ago. To move on with documentation improvements further community support would be highly appreciate.

Describe the solution you'd like A template module with some notes on the documentation is available here https://github.com/e-m-b-a/emba/blob/5cbdc191f4c19707dcec47d5652b7862b20a8a03/modules/template_module.sh#L34

Another module with implemented docs can be found here: https://github.com/e-m-b-a/emba/blob/master/modules/S04_windows_basic_analysis.sh