Nomad changes

docs/snippets/csharp/plugins/unregister_plugins.md

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+```csharp title="C#"
+using Kreuzberg;
+
+var processor = new UnregisterableProcessor();
+PostProcessorRegistry.Register(processor);
+
+Console.WriteLine("Processor registered");
+var processors = KreuzbergLib.ListPostProcessors();
+Console.WriteLine($"Active processors: {string.Join(", ", processors)}");
+
+PostProcessorRegistry.Unregister(processor.Name);
+Console.WriteLine("Processor unregistered");
+
+processors = KreuzbergLib.ListPostProcessors();
+Console.WriteLine($"Active processors: {string.Join(", ", processors)}");
+
+public class UnregisterableProcessor : IPostProcessor
+{
+    public string Name => "removable-processor";
+    public string Version => "1.0.0";
+
+    public void Initialize() { }
+    public void Shutdown() { }
+
+    public void Process(ExtractionResult result, ExtractionConfig config)
+    {
+        Console.WriteLine("Processing...");
+    }
+
+    public ProcessingStage ProcessingStage() => ProcessingStage.Middle;
+    public bool ShouldProcess(ExtractionResult result, ExtractionConfig config) => true;
+    public ulong EstimatedDurationMs(ExtractionResult result) => 10;
+    public int Priority() => 50;
+}
+```