add xpublish to related projects (#3850)
add xpublish to related projects (#3850)


jhamman/xarray,xray/xray,markelg/xray,shoyer/xarray,jhamman/xarray,markelg/xray,markelg/xray,shoyer/xarray,pydata/xarray,pydata/xarray,jhamman/xarray,pydata/xarray