Fixed hosed mgxs-part-iii notebook
Fixed hosed mgxs-part-iii notebook

wbinventor/openmc,mit-crpg/openmc,smharper/openmc,liangjg/openmc,bhermanmit/openmc,amandalund/openmc,smharper/openmc,johnnyliu27/openmc,shikhar413/openmc,walshjon/openmc,walshjon/openmc,smharper/openmc,shikhar413/openmc,samuelshaner/openmc,wbinventor/openmc,paulromano/openmc,amandalund/openmc,paulromano/openmc,walshjon/openmc,mit-crpg/openmc,walshjon/openmc,wbinventor/openmc,paulromano/openmc,paulromano/openmc,mit-crpg/openmc,samuelshaner/openmc,johnnyliu27/openmc,liangjg/openmc,bhermanmit/openmc,wbinventor/openmc,liangjg/openmc,shikhar413/openmc,shikhar413/openmc,mit-crpg/openmc,samuelshaner/openmc,smharper/openmc,johnnyliu27/openmc,amandalund/openmc,amandalund/openmc,johnnyliu27/openmc,liangjg/openmc,samuelshaner/openmc