Reorganization of Contact Reporting inside Physics Introduction

Contact reporting appears two times in the index of the page. Seems reasonable to move the second inside the first one, since Area2D is presented there as a subsection of Contact Reporting, so "In case of overlap, who receives collision information?" could be a subsection of it too.

tutorials/2d/physics_introduction.rst

@@ -337,6 +337,29 @@ Areas also by default receive mouse/touchscreen input, providing a
 lower-level way than controls to implement this kind of input in a game.
 Bodies support this by it's disabled by default.
 
+In case of overlap, who receives collision information?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Remember that not every combination of two bodies can "report" contacts.
+Static bodies are passive and will not report contacts when hit.
+Kinematic Bodies will report contacts but only against Rigid/Character
+bodies. Area2D will report overlap (not detailed contacts) with bodies
+and with other areas. The following table should make it more visual:
+
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+| **Type**          | *RigidBody* | *CharacterBody* | *KinematicBody* | *StaticBody*  | *Area* |
++===================+=============+=================+=================+===============+========+
+| **RigidBody**     | Both        | Both            | Both            | Rigidbody     | Area   |
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+| **CharacterBody** | Both        | Both            | Both            | CharacterBody | Area   |
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+| **KinematicBody** | Both        | Both            | None            | None          | Area   |
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+| **StaticBody**    | RigidBody   | CharacterBody   | None            | None          | None   |
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+| **Area**          | Area        | Area            | Area            | None          | Both   |
++-------------------+-------------+-----------------+-----------------+---------------+--------+
+
 Physics global variables
 ------------------------
 
@@ -410,28 +433,3 @@ The following code should work:
         var space_state = Physics2DServer.space_get_direct_state(space)
 
 Enjoy doing space queries!
-
-Contact reporting
------------------
-
-Remember that not every combination of two bodies can "report" contacts.
-Static bodies are passive and will not report contacts when hit.
-Kinematic Bodies will report contacts but only against Rigid/Character
-bodies. Area2D will report overlap (not detailed contacts) with bodies
-and with other areas. The following table should make it more visual:
-
-**In case of overlap, who receives collision information?**
-
-+-------------------+-------------+-----------------+-----------------+---------------+--------+
-| **Type**          | *RigidBody* | *CharacterBody* | *KinematicBody* | *StaticBody*  | *Area* |
-+===================+=============+=================+=================+===============+========+
-| **RigidBody**     | Both        | Both            | Both            | Rigidbody     | Area   |
-+-------------------+-------------+-----------------+-----------------+---------------+--------+
-| **CharacterBody** | Both        | Both            | Both            | CharacterBody | Area   |
-+-------------------+-------------+-----------------+-----------------+---------------+--------+
-| **KinematicBody** | Both        | Both            | None            | None          | Area   |
-+-------------------+-------------+-----------------+-----------------+---------------+--------+
-| **StaticBody**    | RigidBody   | CharacterBody   | None            | None          | None   |
-+-------------------+-------------+-----------------+-----------------+---------------+--------+
-| **Area**          | Area        | Area            | Area            | None          | Both   |
-+-------------------+-------------+-----------------+-----------------+---------------+--------+