Update README.md

README.md

@@ -20,14 +20,14 @@ Install-Package Cassette.Http
 ```
 
 ### Requirement
-- **.NET Core 2+** or **.NET 4.6.1+** since Cassette targets .NET Standard 2.0 
-- A registered implementation of `IDistributedCache` because the `ReplayingHandler` has a dependency on it.
+- **.NET Core 2+** or **.NET 4.6.1+**
+- Register an implementation (Redis, SQL Server, in-memory) of [`IDistributedCache`](https://docs.microsoft.com/en-us/aspnet/core/performance/caching/distributed).
 
 ### Usage
 Most of the time Cassette will have to be configured both in your application as well as in the associated test project.
 
 #### In the application
-The easiest way to configure Cassette is to use the [HttpClientFactory](https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests). It will allow you to add the `ReplayingHandler` to every `HttpClient`. A sample that also uses [Refit](https://github.com/reactiveui/refit) is available [here](https://github.com/lecaillon/Cassette/blob/7b2b95c42624dc0a21b1e6968aa01a106bc35ea2/samples/AspNetCore.HttpClientFactory.QuickStart/Startup.cs#L24).
+The easiest way to configure Cassette is to use the [HttpClientFactory](https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests). It will allow you to add the `ReplayingHandler` to every `HttpClient`. A sample that also uses [Refit](https://github.com/reactiveui/refit) is available [here](https://github.com/lecaillon/Cassette/blob/master/samples/AspNetCore.HttpClientFactory.QuickStart/Startup.cs).
 > Until the `AddCassette()` configuration method has been called, the HTTP message handler is not really added to the HttpClient, so its behavior remains unchanged.
 ```c#
 services.AddRefitClient<IGeoApi>()