Clarify openIdConnectUrl #3630

[m-mohr]

Clarification according to openIdConnectUrl as discussed in #3630

[AxelNennker]

I think this PR improves the spec. I approve - modulo which version this should go into. Personally I would backport this clarification to when openIdConnectUrl was introduced.

[ralfhandl]

@lornajane The text cited from the referenced spec was removed, instead "well-known" is now part of the link text.

I think that matches the spirit of the requested change, please confirm.

[AxelNennker]

I think the text should be like the oauth2MetadataUrl text in version 3.2

[lornajane]

A good clarification for this existing field, thank you.

[m-mohr]

How is this going to be made available in 3.2.0?

[handrews]

@m-mohr someone needs to copy the fix over to the versions/3.2.0.md file on the v3.2.0-dev branch. If you have time to do it, that would be most appreciated! If not, we'll audit the branches at some point to reconcile. (starting with 3.2, we will be moving to a more normal use of git branches of a single spec file).