chore: rename CTA btn and introduction to quick start

Author: utkarsha-deriv

docs/intro.md

@@ -1,11 +1,10 @@
 ---
-title: Introduction
+title: Quick Start
 hide_title: false
 draft: false
-sidebar_label: Introduction
+sidebar_label: Quick Start
 sidebar_position: 0
 tags:
-  - introduction
   - getting started
   - quick startup
 keywords:
@@ -24,8 +23,6 @@ Our Documentation is divided in several sections:
 - [Guides](category/guides)
 - [Setting up a deriv app](/docs/setting-up-a-deriv-application.md)
 
-### Quick Start
-
 #### Core Concepts
 
 Have a look at the [Core Concept](/docs/category/core-concepts) pages and take your time to read through it. These concepts will help you get familiar with our WebSocket server api and how to use it more efficiently. They are not related to any of our frameworks or libraries.

src/features/Home/HeroHeader/HeroHeader.tsx

@@ -21,7 +21,7 @@ export const HeroHeader = () => {
         </Text>
         <a href='/docs/intro'>
           <Button type='button' className={styles.HeroButton}>
-            Read the docs
+            Quick Start
           </Button>
         </a>
       </div>