Update demo project links, 4.0-dev is now on master

tutorials/3d/volumetric_fog.rst

@@ -23,7 +23,7 @@ On this page, you'll learn:
 .. seealso::
 
     The Godot demo projects repository contains a
-    `volumetric fog demo <https://github.com/godotengine/godot-demo-projects/tree/4.0-dev/3d/volumetric_fog>`__.
+    `volumetric fog demo <https://github.com/godotengine/godot-demo-projects/tree/master/3d/volumetric_fog>`__.
 
 Here is a comparison between traditional fog (which does not interact with lighting)
 and volumetric fog, which is able to interact with lighting:

tutorials/i18n/pseudolocalization.rst

@@ -17,7 +17,7 @@ internationalization can be recognized early on during development.
 
 .. note:: The official demo for pseudolocalization can be used to play around with 
           the various properties and observe their effects. You can
-          `download it from the godot-demo-projects GitHub repository <https://github.com/godotengine/godot-demo-projects/tree/4.0-dev/gui/pseudolocalization>`_.
+          `download it from the godot-demo-projects GitHub repository <https://github.com/godotengine/godot-demo-projects/tree/master/gui/pseudolocalization>`_.
 
 Enabling and configuring pseudolocalization
 -------------------------------------------