Improve URI discoverability

[tfrancart]

I am told from the work on the UNESCO Thesaurus that it is not possible for a crawler / an application to determine and follow the canonical URI of the Concept from a Concept page in Skosmos :

• The URI is not clickable (see #582).
• There is no <meta rel="canonical" at the top of the page
• There is no indication that the download links at the bottom of the page are alternative representations of the same resource
• There is no RDFa to indicate that the current page URL has a foaf:focus or schema:mainEntity or ... pointing to the URI of the Concept

Is there anything approaching in Skosmos ? I don't know exactly what would be the best solution for this, but it would be nice to allow a follow-your-nose approach for machines.

[osma]

I agree, this is something we could improve rather easily.

For example, the download links are generated by Twig templates, adding something like rel="alternate" would be very easy, it's just that I'm not sure what the best solution would be here. The relationship between the concept page and the concept itself is a bit complicated...

Also something like foaf:focus or schema:mainEntity should be very easy to add to the HTML template. At the moment we don't have any RDFa (or similar) markup, the web pages are just plain HTML.

If you have more concrete suggestions for how to modify the HTML code please open individual issues for them. Also pull requests are very welcome ;)