add sarxarray into ecosystem list (#8740)

* add sarxarray into ecosystem list

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Author: rogerkuou

doc/ecosystem.rst

@@ -36,6 +36,7 @@ Geosciences
 - `rioxarray <https://corteva.github.io/rioxarray>`_: geospatial xarray extension powered by rasterio
 - `salem <https://salem.readthedocs.io>`_: Adds geolocalised subsetting, masking, and plotting operations to xarray's data structures via accessors.
 - `SatPy <https://satpy.readthedocs.io/>`_ : Library for reading and manipulating meteorological remote sensing data and writing it to various image and data file formats.
+- `SARXarray <https://tudelftgeodesy.github.io/sarxarray/>`_: xarray extension for reading and processing large Synthetic Aperture Radar (SAR) data stacks.
 - `Spyfit <https://spyfit.readthedocs.io/en/master/>`_: FTIR spectroscopy of the atmosphere
 - `windspharm <https://ajdawson.github.io/windspharm/index.html>`_: Spherical
   harmonic wind analysis in Python.