Update README.md

Author: evansims

README.md

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 **Lightweight library that discovers available [PSR-6 Cache](https://www.php-fig.org/psr/psr-6/) implementations by searching for a list of well-known classes that implement the relevant interface, and returns an instance of the first one that is found.**
 
-This package is part of the [PSR Discovery](https://github.com/psr-discovery) utility suite, which also supports [PSR-18 HTTP Clients](https://github.com/psr-discovery/http-client-implementations), [PSR-17 HTTP Factories](https://github.com/psr-discovery/http-factory-implementations), [PSR-14 Event Dispatcher](https://github.com/psr-discovery/event-dispatcher-implementations), [PSR-11 Container](https://github.com/psr-discovery/container-implementations) and [PSR-3 Loggers](https://github.com/psr-discovery/log-implementations).
+This package is part of the [PSR Discovery](https://github.com/psr-discovery) utility suite, which also supports [PSR-18 HTTP Clients](https://github.com/psr-discovery/http-client-implementations), [PSR-17 HTTP Factories](https://github.com/psr-discovery/http-factory-implementations), [PSR-14 Event Dispatcher](https://github.com/psr-discovery/event-dispatcher-implementations), [PSR-11 Containers](https://github.com/psr-discovery/container-implementations) and [PSR-3 Logs](https://github.com/psr-discovery/log-implementations).
 
 This is largely intended for inclusion in libraries like SDKs that wish to support PSR-6 Caches without requiring hard dependencies on specific implementations or demanding extra configuration by users.