Nomad changes

docs/snippets/csharp/config/keyword_extraction_config.md

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+```csharp title="C#"
+using Kreuzberg;
+
+var config = new ExtractionConfig
+{
+    Keywords = new KeywordConfig
+    {
+        Algorithm = KeywordAlgorithm.Yake,
+        MaxKeywords = 10,
+        MinScore = 0.1f,
+        NgramRange = [1, 3],
+        Language = "en"
+    }
+};
+
+var result = await KreuzbergLib.ExtractFile("document.pdf", null, config);
+if (result.Keywords != null)
+{
+    Console.WriteLine($"Keywords: {string.Join(", ", result.Keywords)}");
+}
+```