Merge pull request #30 from alirobe/patch-1

Add documentation link on how to use file providers

Author: ronaldbarendse

README.md

@@ -100,6 +100,10 @@ UMBRACO__STORAGE__AZUREBLOB__MEDIA__CDN__URL=<CDN_BASE_URL>
 
 _Note: you still have to add the provider in the `Startup.cs` file when not configuring the options in code._
 
+## Using the file system provider
+
+Please refer to our documentation on [using custom file systems](https://our.umbraco.com/documentation/Extending/FileSystemProviders/).
+
 ## Folder structure in the Azure Blob Storage container
 The container name is expected to exist and uses the following folder structure:
 - `/media` - contains the Umbraco media, stored in the structure defined by the `IMediaPathScheme` registered in Umbraco (the default `UniqueMediaPathScheme` stores files with their original filename in 8 character directories, based on the content and property GUID identifier)
@@ -115,4 +119,4 @@ Questions about usage should be posted to the forum on [our.umbraco.com](https:/
 
 ## License
 
-Umbraco Storage Providers is [MIT licensed](LICENSE).
+Umbraco Storage Providers is [MIT licensed](LICENSE).