simplify monitors title and remove comments at bottom

.. _Chap:Inputs:

Monitors/User-defined Spatial Averaging

=======================================

Monitors

========

The following inputs must be preceded by "amr" and control whether to compute

spatial averages and how often to output the results. 

monitors, i.e., spatial averages, and how often to output the results. 

n is the number of monitors specified in avg_int. 

+------------------+-----------------------------------------------------------------------+-------------+-----------+

.. comment::

  amr.avg_int = 10

  amr.avg_file = "uio"

  amr.avg_vel_p =        1       0        0

  amr.avg_p_g   =        0       1        1

  amr.avg_ep_g  =        0       0        0

  amr.avg_vel_g =        0       0        0

  amr.avg_region_x_w =   0.000   0.0000   0.0002

  amr.avg_region_x_e =   0.008   0.0000   0.0002

  amr.avg_region_y_s =   0.000   0.000    0.000

  amr.avg_region_y_n =   0.002   0.002    0.002

  amr.avg_region_z_b =   0.000   0.000    0.000

  amr.avg_region_z_t =   0.002   0.002    0.002