update README

workflows/epigenetics/peaks-consensus/README.md

@@ -9,14 +9,16 @@ The goal of this workflow is to get a list of confident peaks with summits from
 ## Inputs values
 
 - effective_genome_size: this is used by MACS2 and may be entered manually (indications are provided for heavily used genomes).
+- bin_size: this is the bin sized used to compute the average of normalized profiles. Large values will allow to have a smaller output file but with less resolution while small values will increase computation time and size of the output file to produce a more resolutive bigwig.
 
 ## Processing
 
 - The workflow will:
-  - on the one hand,
-    - call peaks on each BAM (or BED) individually
-    - compute the intersection between both
-  - on the other hand,
+  - first part:
+    - call peaks and compute normalized coverage on each BAM (or BED) individually
+    - average normalized profiles
+    - compute the intersection between both peaks
+  - second part:
     - subset both BAM (or BED) to get the same number of reads
     - call peaks on both subsetted BAM combined
   - finally, keep only peaks from the second part that have summits overlapping the intersection of the first part.