[Usability] webpage on conventions
One problem many new users experience are concerned with conventions in OGS. I suggest creating a webpage in Docs->User guide where all of the things are collected. Some points, I have in mind:
- order of stress components in the output
- order of process variables in STDOUT
- units of source term/boundary conditions with respect to the process variables (this might be process dependent)
- OGS/FEM works under the assumption scale invariance. However, there are some locations where implicitly assumptions on units are made (E.g., empirical laws for temperature dependence). One solution to that might be a unit-switch. However, this behavior should be documented somewhere.
Some things might be already documented in the doxygen. However, I think it is good to collect that somewhere again on the webpage.