mergekmer.nf: add kmersize in the results path

src/modules/mergekmer.nf

@@ -27,7 +27,7 @@ process MERGEKMER {
 process COLLATEKMER {
     tag "$specie"
     label 'big_mem_mono_cpus'
-    publishDir "results/${specie}/", mode: 'copy'
+    publishDir "results/${params.kmer_size}/${specie}/", mode: 'copy'
 
     container "lbmc/mergekmer:0.1.2"