* module files tutorial : first complete draft
- first complete draft for module files tutorial
- minor corrections to module file reference
* module file tutorial : first batch of corrections
- module avail spelled out fully
- typos from @adamjstewart
- rewording of a few sentences
* module file tutorial : first batch of corrections
- emphasized lines in yaml files
* module file tutorial : fixes according to @citibeth and @adamjstewart reviews
- used long format for command options
- reworded unclear sentence on tokes
- reworked table in reference manual to make it clearer
* module file tutorial : implemented corrections collected on site from @schlyfts
* module file tutorial : removed comment (@hartzell suggestion)