Adjust code examples in command line options.

README.rst

@@ -165,18 +165,12 @@ Optional command line arguments
 
 There are optional command line arguments for gprMax:
 
-* ``-n`` is used along with a integer number to specify the number of times to run the input file. This option can be used to run a series of models, e.g. to create a B-scan with 60 traces:
-    .. code-block:: none
-        (gprMax)$ python -m gprMax user_models/cylinder_Bscan_2D.in -n 60
-* ``-restart`` is used along with an integer number to specify the starting number for a model. It would typically be used to restart a series of models from a specific model number, with the ``-n`` argument, e.g. to restart from A-scan 30 when creating a B-scan with 60 traces:
-    .. code-block:: none
-        (gprMax)$ python -m gprMax user_models/cylinder_Bscan_2D.in -n 15 -restart 45
+* ``-n`` is used along with a integer number to specify the number of times to run the input file. This option can be used to run a series of models, e.g. to create a B-scan with 60 traces: ``(gprMax)$ python -m gprMax user_models/cylinder_Bscan_2D.in -n 60``
+* ``-restart`` is used along with an integer number to specify the starting number for a model. It would typically be used to restart a series of models from a specific model number, with the ``-n`` argument, e.g. to restart from A-scan 30 when creating a B-scan with 60 traces: ``(gprMax)$ python -m gprMax user_models/cylinder_Bscan_2D.in -n 15 -restart 45``
 * ``-task`` is used along with an integer number to specify the task identifier (model number) for job array on Open Grid Scheduler/Grid Engine (http://gridscheduler.sourceforge.net/index.html)'). It would typically be used with the ``-n`` argument, e.g. to create a B-scan.
 * ``-mpi`` is a flag to switch on the Message Passing Interface (MPI) task farm. This option is most usefully combined with ``-n`` to allow individual models to be farmed out using MPI. For further details see the Parallel performance section (http://docs.gprmax.com/en/latest/openmp_mpi.html)
 * ``-benchmark`` is a flag to switch on benchmarking mode. This can be used to benchmark the threading (parallel) performance of gprMax on different hardware. For further details see the benchmarking section (http://docs.gprmax.com/en/latest/benchmarking.html)
-* ``--geometry-only`` is a flag to build a model and produce any geometry views but not run the simulation. For example, this option is useful for checking the geometry of the model is correct:
-    .. code-block:: none
-        (gprMax)$ python -m gprMax user_models/heterogeneous_soil.in --geometry-only
+* ``--geometry-only`` is a flag to build a model and produce any geometry views but not run the simulation. For example, this option is useful for checking the geometry of the model is correct: ``(gprMax)$ python -m gprMax user_models/heterogeneous_soil.in --geometry-only``
 * ``--geometry-fixed`` is a flag that can be used when running a series of models where the geometry does not change between runs, e.g. a B-scan where only sources and receivers, moved using ``#src_steps`` and ``#rx_steps``, change from run to run.
 * ``--opt-taguchi`` is a flag used to run a series of simulations using a optimisation process based on Taguchi's method. For further details see the user libraries section (http://docs.gprmax.com/en/latest/user_libs_opt_taguchi.html)
 * ``--write-processed`` is a flag to write an extra input file after any Python code and include commands in the original input file have been processed.