add release notes

Author: d-v-b

changes/2761.feature.1.rst

@@ -0,0 +1,5 @@
+Adds a new function ``init_array`` for initializing an array in storage, and refactors ``create_array``
+to use ``init_array``. ``create_array`` takes two a new parameters: ``data``, an optional array-like object, and ``write_data``, a bool which defaults to ``True``.
+If ``data`` is given to ``create_array``, then the ``dtype`` and ``shape`` attributes of ``data`` are used to define the
+corresponding attributes of the resulting Zarr array. Additionally, if ``data`` given and ``write_data`` is ``True``,
+then the values in ``data`` will be written to the newly created array.