try to get numpy version passed through to RTD

kthyng · kthyng · commit 82a30f2acbb1 · 2023-01-23T14:23:04.000-06:00
diff --git a/setup.cfg b/setup.cfg
@@ -56,6 +56,7 @@ author_email = kristen@axds.co
 install_requires =
     cf_xarray
     netcdf4
+    numpy <1.24
     pip
     scikit-learn  # used by xoak for tree
     xarray
