description,group
group1-1,ctrl
group1-2,ctrl
group2-1,ko
group2-2,ko

fileName,description,group
group1-1_R1.fastq.gz,group1-1,ctrl
group1-2_R1.fastq.gz,ctrl
group2-1_R1.fastq.gz,ko
group2-2_R1.fastq.gz,ko

Add `fileName` to example CSV
Add `fileName` to example CSV
