Add language that discourages prefix confusion

[patrick-lloyd-ray]

In the knowledgebase we employ many prefixes in our data models (JSON, LinkML). We would like to pull in resources with an associated BICAN PURL (e.g., /taxonomy/CCN202210140) as well. This can lead to confusion if the labels are relatively close (NCBITaxon vs. CCN taxonomy).

As a preemptive measure, could we add some language that would encourage distinctness/discourage confusion with the PURL namespaces? Perhaps something like:

If you propose a new namespace or prefix through this system, please take care to ensure that your proposed namespace or prefix is unique and is not easily confused with another, existing, namespace or prefix already in use. Bioregistry is a good place to look if you would like to check if a namespace or prefix is already in use.

@satra @lydiang