Update CHANGELOG.md
Update CHANGELOG.md

chuan-wang/NGI-ChIPseq,ewels/NGI-ChIPseq,chuan-wang/NGI-ChIPseq,ewels/NGI-ChIPseq,ewels/NGI-ChIPseq,chuan-wang/NGI-ChIPseq,chuan-wang/NGI-ChIPseq,ewels/NGI-ChIPseq,ewels/NGI-ChIPseq