Fix typo in torque resources

rm/torque/resources.rst

@@ -13,7 +13,7 @@ pbs_resources``.
    Sets the name of the job. This is mostly useful when submitting lot's of
    similar jobs in a loop.
 
-#PBS -l *nodes=1:ppn=8*
+``#PBS -l *nodes=1:ppn=8*``
     Request a single node with *8 physical cores*. The default will always be
     just a single core. Use this option when your job is multi-threaded (OpenMP
     for example). If you intend to run multi-node jobs (MPI-enabled programs)