Add missing C# code examples to documentation

Co-authored-by: A Thousand Ships <96648715+AThousandShips@users.noreply.github.com>
Co-authored-by: Raul Santos <raulsntos@gmail.com>

tutorials/physics/ragdoll_system.rst

@@ -68,6 +68,13 @@ The ragdoll is now ready to use. To start the simulation and play the ragdoll an
     func _ready():
         physical_bones_start_simulation()
 
+ .. code-tab:: csharp
+
+    public override void _Ready()
+    {
+        PhysicalBonesStartSimulation();
+    }
+
 To stop the simulation, call the ``physical_bones_stop_simulation()`` method.
 
 .. image:: img/ragdoll_sim_stop.gif

tutorials/physics/ray-casting.rst

@@ -171,6 +171,24 @@ with Area3D, the boolean parameter ``collide_with_areas`` must be set to ``true`
 
             var result = space_state.intersect_ray(query)
 
+ .. code-tab:: csharp
+
+    private const int RayLength = 1000;
+
+    public override void _PhysicsProcess(double delta)
+    {
+        var spaceState = GetWorld3D().DirectSpaceState;
+        var cam = GetNode<Camera3D>("Camera3D");
+        var mousePos = GetViewport().GetMousePosition();
+
+        var origin = cam.ProjectRayOrigin(mousePos);
+        var end = origin + cam.ProjectRayNormal(mousePos) * RayLength;
+        var query = PhysicsRayQueryParameters3D.Create(origin, end);
+        query.CollideWithAreas = true;
+
+        var result = spaceState.IntersectRay(query);
+    }
+
 Collision exceptions
 --------------------