AssignmentUnpublish => Fix description in the cli help

NodeApp/src/commander/assignment/subcommands/AssignmentPublishUnpublishCommandBase.ts

@@ -13,7 +13,7 @@ abstract class AssignmentPublishUnpublishCommandBase extends CommanderCommand {
 
     protected defineCommand() {
         this.command
-        .description('publish an assignment')
+        .description(`${ this.publish ? 'publish' : 'unpublish' } an assignment`)
         .argument('<name or url>', 'name or url (http/s or ssh) of the assignment')
         .option('-f, --force', 'don\'t ask for confirmation')
         .action(this.commandAction.bind(this));