Document prominently how to use FMPy as an FMU Checker

[chrbertsch]

Including

• usage from the command line
• checking with the GUI
• https://fmu-check.herokuapp.com/

[t-sommer]

Maybe fmi-standard.org is a better place for a "what-can-i-do-if-my-fmu-does-not-work" page.

[chrbertsch]

Maybe fmi-standard.org is a better place for a "what-can-i-do-if-my-fmu-does-not-work" page.

Great that you created https://fmi-standard.org/validation/! But still for beginners it should be described how to check an FMU with fmpy

• from the command line
• with the GUI

And from https://fmi-standard.org/validation/ we should directly link to that place