added readme.txt and tagmanifest-md5.txt into example bag structure tree
added readme.txt and tagmanifest-md5.txt into example bag structure tree

hydroshare/hydroshare,RENCI/xDCIShare,hydroshare/hydroshare,hydroshare/hydroshare,ResearchSoftwareInstitute/MyHPOM,ResearchSoftwareInstitute/MyHPOM,hydroshare/hydroshare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,hydroshare/hydroshare,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,RENCI/xDCIShare,RENCI/xDCIShare,FescueFungiShare/hydroshare,RENCI/xDCIShare,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,RENCI/xDCIShare,ResearchSoftwareInstitute/MyHPOM