KeyboardButton: String can be used instead of this object to specify the button text

[evermake]

https://core.telegram.org/bots/api#replykeyboardmarkup:~:text=For%20simple%20text%20buttons%2C%20String%20can%20be%20used%20instead%20of%20this%20object%20to%20specify%20the%20button%20text.