Add updated image for cartopy example
Add updated image for cartopy example

jhamman/xarray,cpaulik/xray,jcmgray/xarray,markelg/xray,pydata/xarray,markelg/xray,markelg/xray,xray/xray,shoyer/xarray,jhamman/xarray,cpaulik/xray,petercable/xray,pydata/xarray,drewokane/xray,pydata/xarray,jhamman/xarray,shoyer/xray,jhamman/xray,NicWayand/xray,rabernat/xray,chunweiyuan/xarray,shoyer/xarray,rabernat/xray