typo

Signed-off-by: bidi <bidi@apidemia.com>

Author: bidi47

docs/book/v5/introduction/psr.md

@@ -3,25 +3,25 @@
 Some of the PSRs on this list are at the core of Dotkernel API, but several others are installed with the 3rd party packages used in the application.
 Below is the full list of PSRs present in Dotkernel API and their purpose.
 
-* PSR-3: (Logger Interface)[https://www.php-fig.org/psr/psr-3/]
+* PSR-3: [Logger Interface](https://www.php-fig.org/psr/psr-3/)
     * Interface for logging libraries.
-* PSR-4: (Autoloader)[https://www.php-fig.org/psr/psr-4/]
+* PSR-4: [Autoloader](https://www.php-fig.org/psr/psr-4/)
     * Autoloading classes from file paths.
-* PSR-6: (Caching Interface)[https://www.php-fig.org/psr/psr-6/]
+* PSR-6: [Caching Interface](https://www.php-fig.org/psr/psr-6/)
     * Interface for caching systems to improve the performance of any project.
-* PSR-7: (HTTP message interfaces)[https://www.php-fig.org/psr/psr-7/]
+* PSR-7: [HTTP message interfaces](https://www.php-fig.org/psr/psr-7/)
     * Interfaces for representing HTTP messages and URIs for use with HTTP messages.
-* PSR-11: (Container interface)[https://www.php-fig.org/psr/psr-11/]
+* PSR-11: [Container interface](https://www.php-fig.org/psr/psr-11/)
     * Interface for dependency injection containers.
-* PSR-13: (Link definition interfaces)[https://www.php-fig.org/psr/psr-13/]
+* PSR-13: [Link definition interfaces](https://www.php-fig.org/psr/psr-13/)
     * Way of representing a hypermedia link independently of the serialization format.
-* PSR-14: (Event Dispatcher)[https://www.php-fig.org/psr/psr-14/]
+* PSR-14: [Event Dispatcher](https://www.php-fig.org/psr/psr-14/)
     * Mechanism for event-based extension and collaboration.
-* PSR-15: (HTTP Server Request Handlers)[https://www.php-fig.org/psr/psr-15/]
+* PSR-15: [HTTP Server Request Handlers](https://www.php-fig.org/psr/psr-15/)
     * Interfaces for HTTP server request handlers and HTTP server middleware components that use HTTP messages.
-* PSR-17: (HTTP Factories)[https://www.php-fig.org/psr/psr-17/]
+* PSR-17: [HTTP Factories](https://www.php-fig.org/psr/psr-17/)
     * Standard for factories that create PSR-7 compliant HTTP objects.
-* PSR-18: (HTTP Client)[https://www.php-fig.org/psr/psr-18/]
+* PSR-18: [HTTP Client](https://www.php-fig.org/psr/psr-18/)
     * Interface for sending HTTP requests and receiving HTTP responses.
-* PSR-20: (Clock)[https://www.php-fig.org/psr/psr-20/]
+* PSR-20: [Clock](https://www.php-fig.org/psr/psr-20/)
     * Interface for reading the system clock.