Document external but package-specific APIs
We currently have APIs implemented (and mounted) under the v4 APIs that are meant for external use but not directly.
Proposal
Document these APIs (similar to https://docs.gitlab.com/ee/development/internal_api.html) but clearly state / link to how they are used instead.
E.g.
External package APIs
These APIs are used by different package manager clients, it is not intended to be used directly. This documentation is intended for people working on the GitLab codebase.
Authentication
....
Nuget
User facing documentation: https://docs.gitlab.com/ee/user/packages/nuget_repository/
Request path, params
Response details (if relevant)
APIs involved:
ee/lib/api/conan_packages.rb
ee/lib/api/maven_packages.rb
ee/lib/api/npm_packages.rb
ee/lib/api/nuget_packages.rb