Update doc in quantification_by_contig_lineage.py

bin/quantification_by_contig_lineage.py

@@ -3,7 +3,7 @@
 """--------------------------------------------------------------------
   Script Name: quantification_by_contig_lineage.py
   Description: make table where each line is a lineage and for each
-               sample there are two columns: nb contigs and nb reads.
+               sample there are four columns: name of contigs, nb contigs, reads and depth.
   Input files: List of merged files (idxstats+.percontig.csv).
   Created By:  Joanna Fourquet
   Date:        2021-01-19