docs: add overview section to sample (#9976)

Previously we didn't have an Overview section to help users better understand the purpose of our AI Quick Prompt pattern.
With this change we add Overview section, helping the users to understand better its purpose.

packages/website/docs/components/patterns/AI QuickPrompt/AI QuickPrompt.md

@@ -2,4 +2,10 @@ import html from '!!raw-loader!./sample.html';
 import css from '!!raw-loader!./main.css';
 import js from '!!raw-loader!./main.js';
 
+### Overview
+
+Pre-made or "quick" prompts are predefined templates created by prompt engineers to make commonly used prompts easier and faster to use. These prompts help streamline repetitive tasks and reduce the need for writing the same instructions repeatedly.
+
+This pattern simplifies the user experience by offering ready-to-use prompts, allowing users to skip writing boilerplate prompts.
+
 <Editor html={html} js={js} css={css} />