mention ESMPy regridding in release blog post

docs/source/blog/posts/release-0-4-0.rst

@@ -107,12 +107,18 @@ Further, some components were moved to separate packages.
 Regridding and CRS handling
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-With :class:`RegridLinear <.adapters.RegridLinear>` and :class:`RegridNearest <.adapters.RegridNearest>`,
-FINAM now comes with two first basic adapters for regridding between different `Grid specifications`_.
-In addition to handling different grid layouts, both adapters can als perform CRS conversions.
+FINAM comes with basic linear and nearest-neighbour regridding adapters in the core package:
+:class:`RegridLinear <.adapters.RegridLinear>` and :class:`RegridNearest <.adapters.RegridNearest>`.
+
+For more advances regidding, e.g. 1st od 2nd order conservative, there is the separate module
+`finam-regrid <https://finam.pages.ufz.de/finam-regrid/>`_, which provides an adapter based on
+`ESMPy <https://earthsystemmodeling.org/esmpy/>`_.
+
+The adapters perform regridding between arbitrary structured and unstructured `Grid specifications`_.
+In addition to handling different grid layouts, all adapters can also perform CRS conversions.
 
 Due to the new `Bi-directional metadata exchange`_, the input and output `Grid specifications`_ do not need to be given by the user.
-Rather, the adapter automatically determines them from the connected components.
+Rather, the adapters can automatically determine them from the connected components.
 
 OpenSimplex noise generator
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