cme: a configuration checker and editor

This talk will present cme, a tool that:
* validates the semantic content of configuration files.
* provides a GUI to edit the files (with inline check and doc)

We'll see:
* which configuration files are supported
* how to run the CLI to check the content of configuration files
* how to run the GUI to edit configuration files
* how to use the GUI (demo)
* how to use the CLI to modify files

For more information on cme, see
https://github.com/dod38fr/config-model/wiki