resolve the timeouts on RTD (#6727)
resolve the timeouts on RTD (#6727)

* explicitly set the dataset for demonstration with `to_dict`

* show the dataset for reference
jhamman/xarray,pydata/xarray,pydata/xarray,markelg/xray,pydata/xarray,markelg/xray,jhamman/xarray,markelg/xray,jhamman/xarray