Update docs/concepts.md

Co-Authored-By: Lctrs <[email protected]>

Author: sylfabre

Diff for: docs/concepts.md

@@ -11,7 +11,7 @@ The library consist of several components. The components could be used independ
 The transport is the underlying vendor-specific library that provides the queuing features: a way for programs to create, send, read messages.
 Based on [queue interop](https://github.com/queue-interop/queue-interop) interfaces. Use transport directly if you need full control or access to vendor specific features. 
 
-The most famous transports are [RabbitMQ](transport/amqp_lib.md), [Amazon SQS](transport/sqs.md), [Redis](transport/redis.md), [Filesyste](transport/filesystem.md).
+The most famous transports are [RabbitMQ](transport/amqp_lib.md), [Amazon SQS](transport/sqs.md), [Redis](transport/redis.md), [Filesystem](transport/filesystem.md).
 
 - *connection factory* creates a connection to the vendor service with vendor-specific config.
 - *context* provides the Producer, the Consumer and helps creates Messages. It is the most commonly used object and an implementation of [abstract factory](https://en.wikipedia.org/wiki/Abstract_factory_pattern) pattern.