Updated documentation

README.md

@@ -2,7 +2,7 @@
 
 This repository contains PHP topics and their notes to learn from beginner level to advanced level.
 
-*Refer the below contents, To kick start the learning of web application development with PHP. which gives you __step by step__ approach to the concepts.*
+*Refer the below contents, To kick start the learning of important concepts in PHP for web application development. which gives you __step by step__ approach to the concepts.*
 \
  
 
@@ -186,15 +186,9 @@ This repository contains PHP topics and their notes to learn from beginner level
 4. [Performance optimization:](./docs/performance-optimization.md)
 	- [Caching Techniques](./docs/performance-optimization.md#-caching-techniques),
 	- [Code Optimization](./docs/performance-optimization.md#-code-optimization)
-5. Unit Testing:
-	- Writing unit tests for PHP code
-6. Design Patterns:
-	- Applying design patterns for better code organization and reusability
-7. Composer:
-	- ...
-8. PSR Standards
-
-By following this roadmap and consistently practicing, you can develop a strong foundation in PHP and build impressive web applications.
+
+
+By following this road map and consistently practicing, you can develop a strong foundation in PHP and build impressive web applications.
 
 ## ⚑ Contribution
 Contributions are welcome! If you have any suggestions, bug reports, or feature requests, please open an issue or submit a pull request. Make sure to follow the existing coding style and provide clear documentation for your changes.

docs/performance-optimization.md

@@ -58,6 +58,6 @@ It is used to store frequently accessed data in memory or on disk to reduce the
 ---
 [⇪ To Top](#-performance-optimization)
 
-[❮ Previous Topic](./cli-with-php.md)   [Next Topic ❯](./unit-testing.md)
+[❮ Previous Topic](./cli-with-php.md)
 
 [⌂ Goto Home Page](../README.md)