Update README.md

README.md

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-# appconfi-csharp
-Appconfi .NET SDK
+# Appconfi
+
+[Appconfi](https://www.appconfi.com) - Service to centrally manage application settings and feature toggles for applications and services.
+
+## Installation
+
+The Appconfi .NET SDK is available as a Nuget package, to install run the following command in the [Package Manager Console](https://docs.microsoft.com/en-us/nuget/consume-packages/install-use-packages-visual-studio)
+```
+Install-Package Appconfi
+```
+More info is available on [nuget](https://www.nuget.org/packages/Appconfi/)
+
+## Usage
+
+In order to use the Appconfi you will need to [create an account](https://appconfi.com/account/register).
+
+From there you can create your first application and setup your configuration. To use the Appconfi API to access your configuration go to `/accesskeys` there you can find the `application_id` and your `application_secret`.
+
+## How to use
+
+```csharp
+
+var manager = Configuration.NewInstance(applicationId, apiKey);
+
+//Start monitoring changes in your application settings and features toggles.
+manager.StartMonitor();
+
+//Access your application settings
+var color = manager.GetSetting("application.color");
+
+//Check if your feature toggles are enable
+var status = manager.IsFeatureEnabled("you.feature");
+
+```
+
+## Optional parameters
+
+Change your environments:
+
+```csharp
+var env = "PRODUCTION";
+var refreshInterval =  TimeSpan.FromSeconds(10);
+var manager = Configuration.NewInstance(applicationId, apiKey, env, refreshInterval);
+```
+
+## Links
+
+ * [Web](https://appconfi.com)