Fix wrong names in some toctrees

tutorials/2d/_physics.rst

@@ -5,6 +5,6 @@ Physics
    :maxdepth: 1
    :name: toc-2d-physics
 
-   physics_and_collision_2d
+   physics_introduction
    kinematic_character_2d
-   ray-casting
+   ../ray-casting

tutorials/changing_scenes_advanced.rst

@@ -1,13 +0,0 @@
-Introduction
-============
-
-| Changing a scene in Godot is not often as straightforward, this is due
-  to the high flexibility offered by the scene system. As there is
-  nothing that really defines a "loaded scene", this must be done
-  manually.
-| The advantage of this is that it's easy to handle different common
-  situations, such as loading screens (with progress bar), transitions
-  (fadeins/fadeouts), preloaded scenes, etc.
-
-*Juan Linietsky, Ariel Manzur, Distributed under the terms of the `CC
-By <https://creativecommons.org/licenses/by/3.0/legalcode>`__ license.*

tutorials/engine/_filesystem.rst

@@ -5,7 +5,7 @@ Filesystem
    :maxdepth: 1
    :name: toc-filesystem
 
-   version_control_and_project_organization
-   path_separators
+   version_control
+   paths
    saving_your_game
    encrypting_save_games

tutorials/engine/_game_flow.rst

@@ -7,5 +7,4 @@ Game flow
 
    pausing_the_game
    background_loading
-   using_multiple_threads
    handling_quit_request

tutorials/engine/_scene_input_viewports.rst

@@ -6,6 +6,6 @@ Scene, input & viewports
    :name: toc-scene-input-viewports
 
    viewports
-   screen_scaling_and_multiple_resolutions
-   input_events_and_actions
+   multiple_resolutions
+   inputevent
    mouse_and_input_coordinates

tutorials/step_by_step/index.rst

@@ -12,7 +12,7 @@ Learning step by step
    scripting_continued
    simple_2d_game
    gui_tutorial
-   creating_splash_screen
+   splash_screen
    animations
    resources
    file_system