Update installation command to include app name (#5)

## 📌 Pull Request Title
<!-- Clear and concise title describing the change -->

## ✅ Description
<!-- A brief summary of what this PR does -->
- [ ] What’s changed?
- [ ] Why is it needed?
- [ ] Any context for reviewers?

## 🔍 Related Issue(s)
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Closes #123
Fixes #456

## 🚀 Changes
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- Added/Updated/Refactored `...`
- Removed `...`
- Bug fix for `...`

## 🧪 How to Test
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1. `git checkout feature/my-feature`
2. Run `npm install` / `composer install`
3. `npm run dev` / `php artisan serve`
4. Test the following...

## 📸 Screenshots (if applicable)
<!-- Upload before/after screenshots or UI changes -->

## 🔒 Security Checklist
- [ ] Input validation
- [ ] Auth/permission checks
- [ ] No sensitive data logged or exposed

## 🧠 Notes for Reviewers
<!-- Extra tips, known issues, or things to double-check -->
- Check the API integration with `/api/v1/data`
- This PR depends on #789

## 🧹 Checklist
- [ ] My code follows the project’s coding style
- [ ] I’ve self-reviewed my own code
- [ ] I’ve commented my code, especially in hard-to-understand areas
- [ ] I’ve added tests if applicable
- [ ] I’ve made corresponding changes to the documentation
- [ ] This PR is ready for review

---

🧑‍💻 *PR created by: [Your Name or GitHub handle]*

Author: CodeWithSushil

README.md

@@ -24,7 +24,7 @@ ___
 ### Install
 
 ```bash
-composer create-project codebysushil/auth
+composer create-project codebysushil/auth MyApp
 ```
 
 ___