use | for multi-line description

Author: sainsachiko

modules/nf-core/seqtk/comp/meta.yml

@@ -7,9 +7,10 @@ keywords:
 
 tools:
   - "seqtk_comp":
-      description: "Seqtk is a fast and lightweight tool for processing sequences in\
-        \ the FASTA or FASTQ format. The seqtk comp command computes base composition,\
-        \ sequence length, and GC content for quality control."
+      description: |
+        Seqtk is a fast and lightweight tool for processing sequences in the FASTA or FASTQ format. 
+        The seqtk comp command computes base composition, sequence length, and GC content for quality control.
+
       homepage: https://github.com/lh3/seqtk
       documentation: https://docs.csc.fi/apps/seqtk/
       tool_dev_url: https://github.com/lh3/seqtk