Update API docs for new namespace format
What does this MR do?
Follow-up to d05dd81b which changed the nested namespaces in projects to use API::Entities::Namespace
instead of exposing all fields.
Does this MR meet the acceptance criteria?
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Changelog entry added -
Documentation created/updated -
API support added - Tests
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Added for this feature/bug -
All builds are passing
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Conform by the merge request performance guides -
Conform by the style guides -
Branch has no merge conflicts with master
(if it does - rebase it please) -
Squashed related commits together