Clean up release notes in preparation for v3 (#2634)

Author: dstansby

Diff for: docs/conf.py

@@ -105,10 +105,10 @@ def skip_submodules(
      "license": "https://github.com/zarr-developers/zarr-python/blob/main/LICENSE.txt",
      "tutorial": "user-guide",
      "getting-started": "quickstart",
-     "release": "developers/release.html",
      "roadmap": "developers/roadmap.html",
      "installation": "user-guide/installation.html",
-     "api": "api/zarr/index"
+     "api": "api/zarr/index",
+     "release": "release-notes"
 }
 
 # The language for content autogenerated by Sphinx. Refer to documentation

Diff for: docs/developers/contributing.rst

@@ -213,7 +213,7 @@ and functions are included in the API documentation, under the ``docs/api`` fold
 using the `autodoc <https://www.sphinx-doc.org/en/master/usage/extensions/autodoc.html>`_
 extension to sphinx. Any new features or important usage information should be included in the
 user-guide (``docs/user-guide``). Any changes should also be included in the release
-notes (``docs/developers/release.rst``).
+notes (``docs/release-notes.rst``).
 
 The documentation can be built locally by running::
 

Diff for: docs/developers/index.rst

@@ -6,5 +6,4 @@ Developer's Guide
     :maxdepth: 1
 
     contributing
-    release
     roadmap