rename init_shrink and move it to initialization (!89)

docs/source_docs/user_guide/inputs/initialization.rst

@@ -12,6 +12,9 @@ The following inputs must be preceded by ``mfix`` and determine how we initializ
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+
 | initial_iterations   | Number of pressure iterations to execute before time-marching         |  Int        |    3         |
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+
+| scale_init_dt        | Factor by which ``dt`` is scaled in the initial iterations and step.  |    Real     |  1.0         |
+|                      | Must be a value <= 1.0                                                |             |              |
++----------------------+-----------------------------------------------------------------------+-------------+--------------+
 
 
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+

docs/source_docs/user_guide/inputs/time-stepping.rst

@@ -121,8 +121,6 @@ The following inputs are defined using the ``mfix`` prefix.
 | clean_exit           | This input represents the name of a file that, if found in the run    |    String   |   ""         |
 |                      | folder, makes the code stop and perform a clean exit                  |             |              |
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+
-| init_shrink          | Factor by which ``dt`` is shrunk in the initial iterations and step   |    Real     |  1.0         |
-+----------------------+-----------------------------------------------------------------------+-------------+--------------+
 
 In the case of unsteady flow, the simulation will stop when either the number of steps
 reaches ``max_step`` or time reaches ``stop_time``.