Fix bug: replace default fasta file with concrete fasta file

psot/nextflow.py

@@ -180,7 +180,7 @@ def generate_nextflow_script(execution):
     modules = execution['modules']
 
     fragments = []
-    fragments.append('''params.fasta = "example/proteins.fas"
+    fragments.append('''params.fasta = "'''+execution['fasta']+'''"
 Channel.fromPath(params.fasta).set{fasta}''')
     target_channels = ["for_"+m['id'] for m in modules]
     fragments.append('fasta.into{'+';'.join(target_channels)+';}')