update text writing anim (#4230)

examples/text/text_writing_anim.c

@@ -52,7 +52,7 @@ int main(void)
             DrawText(TextSubtext(message, 0, framesCounter/10), 210, 160, 20, MAROON);
 
             DrawText("PRESS [ENTER] to RESTART!", 240, 260, 20, LIGHTGRAY);
-            DrawText("PRESS [SPACE] to SPEED UP!", 239, 300, 20, LIGHTGRAY);
+            DrawText("HOLD [SPACE] to SPEED UP!", 239, 300, 20, LIGHTGRAY);
 
         EndDrawing();
         //----------------------------------------------------------------------------------