metadata space added

Author: sorelfitzgibbon

metadata.yaml

@@ -4,7 +4,7 @@ description: 'Docker repository for SAMtools'
 maintainers: ['[email protected]']
 contributors: ['Rupert Hugh-White', 'Helena Winata', 'Arpi Beshlikyan', 'Jaron Arbet', 'Sorel Fitz-Gibbon', 'Beth Neilsen', 'Kiarod Pashminehazar']
 languages: ['Dockerfile']
-tools: ['SAMtools','gnuplot']
+tools: ['SAMtools', 'gnuplot']
 version: ['1.21']
 purpose: 'A tool for reading/writing/editing/indexing/viewing SAM/BAM/CRAM format'
 references: 'Li H et al. Bioinformatics 25, (2009)'