Update Physics introduction images

tutorials/physics/physics_introduction.rst

@@ -78,7 +78,7 @@ These nodes allow you to draw the shape directly in the editor workspace.
                 the ``Node2D`` scale handles. Scaling a shape can result in unexpected
                 collision behavior.
 
-.. image:: img/player_coll_shape.png
+.. image:: img/player_coll_shape.webp
 
 Physics process callback
 ~~~~~~~~~~~~~~~~~~~~~~~~
@@ -132,9 +132,9 @@ These properties can be configured via code, or by editing them in the Inspector
 
 Keeping track of what you're using each layer for can be difficult, so you
 may find it useful to assign names to the layers you're using. Names can
-be assigned in **Project Settings > Layer Names**.
+be assigned in **Project Settings > Layer Names > 2D Physics**.
 
-.. image:: img/physics_layer_names.png
+.. image:: img/physics_layer_names.webp
 
 GUI example
 ^^^^^^^^^^^
@@ -149,8 +149,8 @@ place each node type in its respective layer using the "Layer" property.
 Then set each node's "Mask" property by selecting the layers it should
 interact with. For example, the Player's settings would look like this:
 
-.. image:: img/player_collision_layers.png
-.. image:: img/player_collision_mask.png
+.. image:: img/player_collision_layers.webp
+.. image:: img/player_collision_mask.webp
 
 .. _doc_physics_introduction_collision_layer_code_example: