Update release-notes.rst

Author: martindurant

docs/release-notes.rst

@@ -7,6 +7,8 @@ Unreleased
 Bug fixes
 ~~~~~~~~~
 
+* Backwards compatibility for Zarr format 2 structured arrays (:issue:`2134`)
+
 Features
 ~~~~~~~~
 
@@ -22,7 +24,6 @@ Other
 Bug fixes
 ~~~~~~~~~
 * Fixes ``order`` argument for Zarr format 2 arrays (:issue:`2679`).
-* Backwards compatibility for Zarr format 2 structured arrays (:issue:`2134`)
 
 * Fixes a bug that prevented reading Zarr format 2 data with consolidated
   metadata written using ``zarr-python`` version 2 (:issue:`2694`).