readme updated

Author: tolecar

README.md

@@ -1,9 +1,16 @@
 # Filesystem data layer for Convoworks
 
-This library contains filesystem implementations for `\Convo\Core\IServiceDataProvider`, `\Convo\Core\IServiceParamsFactory` and `\Convo\Core\IServiceParamsFactory` Convoworks interfaces which serves for storing service related data.
+This library contains filesystem implementations for `\Convo\Core\IServiceDataProvider`, `\Convo\Core\IServiceParamsFactory`, `\Convo\Core\IServiceParamsFactory` and `Convo\Core\Media\IServiceMediaManager` Convoworks interfaces which are serving for data storage.
 
+In addition there is a simple filesystem `Psr\SimpleCache\CacheInterface` implementation too.
 
-## Usage
+### Service data
 
-If you are not using DI, you can initialize them like this:
+* `Convo\Data\Filesystem\FilesystemServiceDataProvider` implements `IServiceDataProvider` - stores service data
+* `Convo\Data\Filesystem\FilesystemServiceParams` implements `IServiceParams` - stores runtime service params
+* `Convo\Data\Filesystem\FilesystemServiceParamsFactory` implements `IServiceParamsFactory` - creates concrete service params storages
+* `Convo\Data\Filesystem\FilesystemServiceMediaManager` implements `IServiceMediaManager` - stores service media
 
+### Cache
+
+* `Convo\Data\Filesystem\FilesystemCache` implements `CacheInterface` - cache is available to be used in Convoworks components