fix(docs): update Node.js version requirement to LTS

Author: AmanVarshney01

.github/CONTRIBUTING.md

@@ -15,7 +15,7 @@ This repository is organized as a monorepo containing:
 
 ### Prerequisites
 
-- Node.js 20+ 
+- Node.js (lts)
 - Bun (recommended)
 - Git
 

apps/web/content/docs/contributing.mdx

@@ -16,7 +16,7 @@ This project is a monorepo with two main apps:
 
 ### Prerequisites
 
-- Node.js 20+
+- Node.js (lts)
 - Bun (recommended)
 - Git
 

apps/web/content/docs/index.mdx

@@ -12,6 +12,12 @@ description: Create your first Better-T-Stack project in minutes
 
 ## Get Started
 
+### Prerequisites
+
+- **Node.js LTS** - [Download from nodejs.org](https://nodejs.org/)
+- **Git** (optional) - [Download from git-scm.com](https://git-scm.com/) - if you want to initialize a git repository
+- **Bun** (optional) - [Download from bun.com](https://bun.com/) - if you want to use Bun as your package manager
+
 ### CLI (prompts)
 
 <Tabs items={['bun', 'pnpm', 'npm']}>