Validator Compare page: dropdown menu and disambiguation

[jclauneuro]

Consider providing a link that provides information about the validated templates included in the validator so far.

Provide better descriptors in the dropdown menu (currently uses the name of the associated .fcsv file). Also by default the validator checks an input .fcsv file remaining agnostic to template choice, so perhaps the associated text should be "Check format of .fcsv file only" (or something to that effect).

[kaitj]

Made some changes (that have been commited to the existing pull request #77) that addresses some of the points to the second half of this issue.

To the first point, we can also just list the available templates on the homepage (the documents site would have the details to each)

[kaitj]

Escalate to afids documentation and link from site to doc.

[kaitj]

Documentation / description concern aised to afids-protocol Next action would be to add a reference on the validator page that points to the template description - will be waiting for that to be added to the documentation!

Leaving the issue open until this is added.