examples: Fix some window titles in the demos.

examples/demo/01-snake/snake.c

@@ -316,7 +316,7 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
 
     *appstate = as;
 
-    if (!SDL_CreateWindowAndRenderer("examples/game/snake", SDL_WINDOW_WIDTH, SDL_WINDOW_HEIGHT, 0, &as->window, &as->renderer)) {
+    if (!SDL_CreateWindowAndRenderer("examples/demo/snake", SDL_WINDOW_WIDTH, SDL_WINDOW_HEIGHT, 0, &as->window, &as->renderer)) {
         return SDL_APP_FAILURE;
     }