Updated ai server cs test examples.

Author: Layoric

MyApp/_includes/ai-server/cs/queue-speech-to-text-1.cs.md

@@ -3,6 +3,6 @@ var request = new QueueSpeechToText{};
 
 var response = client.PostFilesWithRequest<QueueGenerationResponse>(
     request,
-    [new UploadFile("test_audio.wav", File.OpenRead("files/test_audio.wav"), "speech")]
+    [new UploadFile("test_audio.wav", File.OpenRead("files/test_audio.wav"), "audio")]
 );
 ```

MyApp/_includes/ai-server/cs/speech-to-text-1.cs.md

@@ -3,7 +3,7 @@ var request = new SpeechToText{};
 
 var response = client.PostFilesWithRequest<GenerationResponse>(
     request,
-    [new UploadFile("test_audio.wav", File.OpenRead("files/test_audio.wav"), "speech")]
+    [new UploadFile("test_audio.wav", File.OpenRead("files/test_audio.wav"), "audio")]
 );
 
 // Two texts are returned

MyApp/_includes/ai-server/cs/text-to-speech-1.cs.md

@@ -1,12 +1,12 @@
 ```csharp
 var request = new TextToSpeech
 {
-    Text = "Hello, how are you?"
+    Input = "Hello, how are you?"
 };
 
 var response = client.PostFilesWithRequest<GenerationResponse>(
     request,
     [new UploadFile("test_audio.wav", File.OpenRead("files/test_audio.wav"), "audio")]
 );
-response.Outputs[0].Url.DownloadFileTo("hello.mp3");
+response.Outputs[0].Url.DownloadFileTo(outputFileName);
 ```