(doc) Include URLs checked for GitHub comment rule

This includes information about what the URLs look like that we consider
to come from GitHub comments that will be flagged by Package Validator.

Author: AdmiringWorm

src/content/docs/en-us/community-repository/moderation/package-validator/rules/cpmr0075.mdx

@@ -15,6 +15,7 @@ import PackageValidatorRuleRequirement from '@components/docs/PackageValidatorRu
 ## Issue
 
 Within one or more of the automation scripts, one or more URLs were found to point to a GitHub comment file or asset.
+URLs starting with `https://github.com/<REPOSITORY_OWNER>/<REPOSITORY_NAME>/files/` or `https://github.com/<REPOSITORY_OWNER>/<REPOSITORY_NAME>/assets/` are considered to be GitHub comment URLs, both on the `github.com` and `gist.github.com` domains.
 
 ## Recommended Solution