pbs: typo (thanks to Ylva)

pbs/commands.rst

@@ -134,7 +134,7 @@ Examples:
 Deleting
 --------
 
-Sometimes it is necessary to delete jobs from the queue with ``qsub [job id]``.
+Sometimes it is necessary to delete jobs from the queue with ``qdel [job id]``.
 Either because you realized the code is not doing what it's supposed to be
 doing or you want to start over for some other reason. The command will not
 return any text by default, but throw an error when it couldn't find the job(s)