minor #3789 [Reference][Forms] Improvements to the form type (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

[Reference][Forms] Improvements to the form type

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
-------

8a6feb8 fix the order of the options in the table to match their order below
8e7ebf5 add the action option and the method option to the introductionary table, remove doubled include of them
f6a6566 document the default value of the form's compound option

Author: weaverryan

reference/forms/types/form.rst

@@ -8,10 +8,10 @@ The ``form`` type predefines a couple of options that are then available
 on all types for which ``form`` is the parent type.
 
 +-----------+--------------------------------------------------------------------+
-| Options   | - `compound`_                                                      |
-|           | - `data`_                                                          |
+| Options   | - `data`_                                                          |
 |           | - `data_class`_                                                    |
 |           | - `empty_data`_                                                    |
+|           | - `compound`_                                                      |
 |           | - `required`_                                                      |
 |           | - `label_attr`_                                                    |
 |           | - `constraints`_                                                   |
@@ -30,6 +30,8 @@ on all types for which ``form`` is the parent type.
 |           | - `extra_fields_message`_                                          |
 |           | - `post_max_size_message`_                                         |
 |           | - `pattern`_                                                       |
+|           | - `action`_                                                        |
+|           | - `method`_                                                        |
 +-----------+--------------------------------------------------------------------+
 | Inherited | - `block_name`_                                                    |
 | options   | - `disabled`_                                                      |
@@ -50,10 +52,6 @@ Field Options
 
 .. include:: /reference/forms/types/options/data_class.rst.inc
 
-.. include:: /reference/forms/types/options/action.rst.inc
-
-.. include:: /reference/forms/types/options/method.rst.inc
-
 .. include:: /reference/forms/types/options/empty_data.rst.inc
 
 .. include:: /reference/forms/types/options/compound.rst.inc

reference/forms/types/options/compound.rst.inc

@@ -1,7 +1,7 @@
 compound
 ~~~~~~~~
 
-**type**: ``boolean``
+**type**: ``boolean`` **default**: ``true``
 
 This option specifies if a form is compound. This is independent of whether the
 form actually has children. A form can be compound but not have any children