Brooklyn Theme: add text under the slideshow

[bainhadecopas]

Hi, how to add a text under the slideshow on Brooklyn Theme.
I show a exemple what i need on my website bainhadecopas.com

The text area i need is in black:

[Pallavi]

Hello There, 

1. Go to Online Store->Theme->Edit code
2. sections->sections/slideshow.liquid->paste bellow code in the bottom of the file

<div class="simpletext text-center">
<p> {{ section.settings.text-box }} </p>
</div>

Screenshot :- https://prnt.sc/vqhp9g , https://prnt.sc/vqhpyp

1. Go to Online Store->Theme->Edit code
2. sections->sections/slideshow.liquid->paste bellow code in the bottom of the file

Add schema
{
"id": "text-box",
"type": "text",
"label": "Add text",
"default": "Title"
}

Screenshot :- https://prnt.sc/vqhr9p , https://prnt.sc/vqhthu