docs: add new top level about page

Author: jhamman

docs/about.rst

@@ -0,0 +1,22 @@
+About
+=====
+
+Zarr is a format for the storage of chunked, compressed, N-dimensional arrays
+inspired by `HDF5 <https://www.hdfgroup.org/HDF5/>`_, `h5py
+<https://www.h5py.org/>`_ and `bcolz <https://bcolz.readthedocs.io/>`_.
+
+These documents describe the Zarr Python implementation. More information
+about the Zarr format can be found on the `main website <https://zarr.dev>`_.
+
+If you are using Zarr, we would `love to hear about it
+<https://github.com/zarr-developers/community/issues/19>`_.
+
+Funding
+-------
+The project is fiscally sponsored by `NumFOCUS <https://numfocus.org/>`_, a US
+501(c)(3) public charity, and development is supported by the
+`MRC Centre for Genomics and Global Health <https://www.cggh.org>`_
+and the `Chan Zuckerberg Initiative <https://chanzuckerberg.com/>`_.
+
+
+.. _NumCodecs: https://numcodecs.readthedocs.io/

docs/index.rst

@@ -9,6 +9,7 @@ Zarr-Python
     :hidden:
 
     getting_started
+    about
     user-guide/index
     api/index
     release