Add snippets

snippets/csharp/ServiceStatus.cs

@@ -8,7 +8,7 @@ public class ServiceStatusSnippets
         try
         {
             var healthCheck = sdk.ServiceHealthCheck();
-            Console.WriteLine($"Current service status is: {healthCheck.status}"); 
+            Console.WriteLine($"Current service status is: {healthCheck.status}");
         }
         catch (Exception)
         {

snippets/csharp/Webhook.cs

@@ -0,0 +1,32 @@
+using Breez.Sdk;
+
+public class ServiceStatusSnippets
+{
+    public void Webhook(BlockingBreezServices sdk)
+    {
+        // ANCHOR: register-webook
+        try
+        {
+            sdk.RegisterWebhook("https://yourapplication.com");
+        }
+        catch (Exception)
+        {
+            // Handle error
+        }
+        // ANCHOR_END: register-webook
+    }
+
+    public void PaymentWebhook(BlockingBreezServices sdk)
+    {
+        // ANCHOR: register-payment-webook
+        try
+        {
+            sdk.RegisterWebhook("https://your-nds-service.com/notify?platform=ios&token=<PUSH_TOKEN>");
+        }
+        catch (Exception)
+        {
+            // Handle error
+        }
+        // ANCHOR_END: register-payment-webook
+    }
+}