Include missing pages in the wiki TOC

[david-acm]

[[### Is your feature request related to a problem? Please describe.

I found the following doc pages using GH search. Although they contain useful information, they are not included in the home wiki page table of contents:

docs/Using-Group-Identity.md
docs/template-resolution-for-dotnet-cli.md

Describe the solution you'd like.

Let's include them in the TOC so that they are easy to find

Additional context

No response

[baronfel]

We've actually been meaning to remove/deprecate the wiki as its contents are not easily source-controllable. The docs folder on the repo should be considered the canonical source for documentation.