WCAG2ICT Project: Add WCAG 2.2 documents as citable references.

[maryjom]

Need to find out how to properly add WCAG 2.2 documents as citable references. Only WCAG 2.0 [WCAG20] shows up in the list of references. Need to be able to use the following 3 citations in the code:
[<cite><a href="https://w3c.github.io/wcag2ict/#REF-WCAG22">WCAG22</a></cite>]
[<cite><a href="https://w3c.github.io/wcag2ict/#REF-UNDERSTANDING-WCAG22">UNDERSTANDING-WCAG22</a></cite>]
[<cite><a href="https://www.github.io/wcag2ict/#REF-WCAG22-TECHS">WCAG22-TECHS</a></cite>]

Originally posted by @maryjom in #18 (comment)

[daniel-montalvo]

These should be working now.

Understanding and Techniques are dealt with in #53
Missing terms from Understanding documents are dealt with in corresponding WCAG repos.

[maryjom]

@daniel-montalvo I think this can be closed now, right? I've merged in the PR and those links are working in the editor's draft.

[daniel-montalvo]

Thanks. Sure. Closing now.