Send_button text may not exceed 20 characters

[ahmadhadidi]

Hello again,

I would like to propose in the API documentation that we warn the dev that they cannot exceed 20 characters for each button name and row title.

"""
    Send an interactive message with buttons.

    :param button: Button object, rows-title may not exceed 20 characters
    check https://github.com/Neurotech-HQ/heyoo#sending-interactive-reply-buttons for an example.
    :param recipient_id:  Typically the phone number of the recepient
    :return:
"""

[Kalebu]

Thank you @ahmadhadidi for your contributions, I have updated the docstring for the methods accordingly

I will now close this issue