Provide more concrete direction for linking to DOI access documentation

[jordanpadams]

Per https://github.com/nasa/smd-open-science-guidelines/blob/main/request_for_comment/draft/rfc_002_how_to_make_data_fair.md#first-steps-4, are there any ideas for more concrete direction for how we can provide an integrated look at how DOIs can be accessed across SMD? Maybe a page on SciX for how to access all the information about DOIs across the various systems?

e.g.

System	Web Search Access	API Access
System X	link TBD	link TBD
System Y	link TBD	link TBD

[chutneyboy]

I believe STI is working on this. I'll forward your comment to prod them along :-)