add kmersize parameter

src/main.nf

@@ -3,6 +3,7 @@ nextflow.enable.dsl=2
 /*
 Testing pipeline for marseq scRNASeq analysis
 */
+params.kmer_size = 31
 
 include { SPLIT } from "./modules/split"
 include { FASTKMERS } from "./modules/fastkmers"

src/modules/fastkmers.nf

@@ -15,7 +15,7 @@ process FASTKMERS {
     script:
     def args = task.ext.args ?: ''
     """
-    fastkmers -k 31 ${fastq} > ${fastq.simpleName}.csv
+    fastkmers -k ${params.kmer_size} ${fastq} > ${fastq.simpleName}.csv
 
 
     cat <<-END_VERSIONS > versions.yml