report contains old URLs

[ghwood]

As with #10 , there are several obsolete URLs in the report generated by the Validate (idnits) function at https://author-tools.ietf.org.

Screenshot attached.

It looks like:

https://trustee.ietf.org/license-info -> https://trustee.ietf.org/documents/trust-legal-provisions/

https://www.ietf.org/id-info/checklist & https://www.ietf.org/id-info/1id-guidelines.txt -> https://authors.ietf.org/required-content

[gregbo]

In general, idnits contains old URLs in the code and comments, such as:

• using the 'http' scheme instead of 'https'
• referencing content from older versions of the ID checklist page instead of the newer content at authors.ietf.org