Fix incorrect export template path in Compiling for macOS (#5425)

development/compiling/compiling_for_macos.rst

@@ -139,7 +139,7 @@ with the following commands (assuming a universal build, otherwise replace the
     mkdir -p osx_template.app/Contents/MacOS
     cp bin/godot.osx.opt.universal osx_template.app/Contents/MacOS/godot_osx_release.64
     cp bin/godot.osx.opt.debug.universal osx_template.app/Contents/MacOS/godot_osx_debug.64
-    chmod +x Godot.app/Contents/MacOS/godot_osx*
+    chmod +x osx_template.app/Contents/MacOS/godot_osx*
 
 .. note::