Clean-up footprints.yml

[pierresegonne]

Description

The readability and the consistency of data presented in the footprints.yml file could greatly be enhanced by cleaning the file

Tasks

• [ ] Clean the identifiers by setting them to capitalised format (i.e only first letter of a sentence is capitalised)
• [ ] Update the python script to make sure that running it will not override this
• [ ] Consistent coicopCode, they should all be encased with ticks '
• [ ] Update the python script to make sure that running it will not override this