Correct publishDir typo in README

README.md

@@ -171,7 +171,7 @@ accepted as workflow parameters**. Astrocyte will allow users to select input
 files, and pass the parameter values to your workflow. 
 
 Output files for the user should be published to `$baseDir/output` using the nextflow
-directive `publishDir "$baseDir/output, mode: 'copy''"` in a process block.
+directive `publishDir "$baseDir/output", mode: 'copy'` in a process block.
 You can create a directory structure inside `$baseDir/output` if required to
 organize the output files. Note that we use the 'copy' mode so that Nextflow's
 work directories can be cleaned up by Astrocyte. By default Nextflow will link