Adding prelim version of loading data document
Adding prelim version of loading data document

macarthur-lab/seqr,macarthur-lab/xbrowse,macarthur-lab/xbrowse,macarthur-lab/xbrowse,macarthur-lab/seqr,ssadedin/seqr,ssadedin/seqr,ssadedin/seqr,ssadedin/seqr,ssadedin/seqr,macarthur-lab/xbrowse,macarthur-lab/xbrowse,macarthur-lab/seqr,macarthur-lab/xbrowse,macarthur-lab/seqr,macarthur-lab/seqr