Changes
* Install etherdraw !
* Migrate to CodiMD/HackMD ** Example: https://md.chaospott.de/IICpTztRThGUwyiEkV-lrA** Copy pads https://github.com/hackmdio/codimd/blob/master/docs/guides/migrate-etherpad.md
** We should keep pad.fixme.ch in readonly with etherpad
** Add md.fixme.ch with CodiMD and an import of etherpad
