Add Meltano to "Used By" in the docs (#914)

Co-authored-by: Ofek Lev <ofekmeister@gmail.com>

Author: edgarrmondragon

docs/_static/meltano.svg

@@ -154,6 +154,11 @@ few:
 
         .. image:: _static/django-modern-rest.png
 
+    .. grid-item-card:: `Meltano <https://sdk.meltano.com/en/latest/guides/performance.html#use-a-different-message-writer-or-reader>`_
+
+        .. image:: _static/meltano.svg
+            :target: https://meltano.com/
+
 .. _type annotations: https://docs.python.org/3/library/typing.html
 .. _JSON: https://json.org
 .. _MessagePack: https://msgpack.org