minor improvement

Author: linsalrob

Workshops/INRB2023.md

@@ -138,7 +138,7 @@ echo "R2 matching human genome:"
 samtools fastq -F 3588 -f 129 788707_20180129.bam | gzip -c > human/788707_20180129_S_R2.fastq.gz
 ```
 
-### sequnces that are not human
+### sequences that are not human
 
 ```
 samtools fastq -F 3584 -f 77 788707_20180129.bam  | gzip -c > not_human/788707_20180129_S_R1.fastq.gz