docs/dev/application: document some more directories (pypi#16259)

Signed-off-by: William Woodruff <william@trailofbits.com>
Co-authored-by: Dustin Ingram <di@users.noreply.github.com>

docs/dev/application.rst

@@ -106,7 +106,9 @@ Directories within the repository:
  owned/maintained projects)
  - `metrics/ <https://github.com/pypi/warehouse/tree/main/warehouse/metrics>`_ - services for recording metrics
  - `migrations/ <https://github.com/pypi/warehouse/tree/main/warehouse/migrations>`_ - changes to the database schema
- - `packaging/ <https://github.com/pypi/warehouse/tree/main/warehouse/packaging>`_ - models
+ - `oidc/ <https://github.com/pypi/warehouse/tree/main/warehouse/oidc>`_ - `Trusted Publishing <https://docs.pypi.org/trusted-publishers/>`_ support
+ - `organizations/ <https://github.com/pypi/warehouse/tree/main/warehouse/organizations>`_ - organization accounts
+ - `packaging/ <https://github.com/pypi/warehouse/tree/main/warehouse/packaging>`_ - core packaging models (projects, releases, files)
  - `rate_limiting/ <https://github.com/pypi/warehouse/tree/main/warehouse/rate_limiting>`_ - rate limiting to prevent abuse
  - `rss/ <https://github.com/pypi/warehouse/tree/main/warehouse/rss>`_ - RSS feeds: :doc:`api-reference/feeds`
  - `search/ <https://github.com/pypi/warehouse/tree/main/warehouse/search>`_ - utilities for building and querying the search index