Set anchor tags for DID method entries

[jceb]

It would be helpful to have an anchor tag for each DID method entry in the HTML document (https://www.w3.org/TR/did-extensions-methods/#did-methods). This would increase the utility of this document since method entries could be referenced directly.

[wip-abramson]

You might be interested in a directory service I helped create for DID methods that currently keeps in sync with the W3C DID method registry. - https://diddirectory.com.

You can reference DID methods using https://diddirectory.com// E.g. https://diddirectory.com/btcr