improve examples

Author: electronstudio

README.md

@@ -41,6 +41,9 @@ while not WindowShouldClose():
     UpdateCamera(camera)
     BeginDrawing()
     ClearBackground(RAYWHITE)
+    BeginMode3D(camera[0])
+    DrawGrid(20, 1.0)
+    EndMode3D()
     DrawText(b"Hellow World", 190, 200, 20, VIOLET)
     EndDrawing()
 CloseWindow()
@@ -68,6 +71,9 @@ while not pyray.window_should_close():
     pyray.update_camera(pyray.pointer(camera))
     pyray.begin_drawing()
     pyray.clear_background(RAYWHITE)
+    pyray.begin_mode_3d(camera)
+    pyray.draw_grid(20, 1.0)
+    pyray.end_mode_3d()
     pyray.draw_text("Hello world", 190, 200, 20, VIOLET)
     pyray.end_drawing()
 pyray.close_window()