Update src/Custom/Realtime/RealtimeClient.cs

Co-authored-by: Christopher Scott <[email protected]>

Author: joseharriaga

src/Custom/Realtime/RealtimeClient.cs

@@ -45,7 +45,7 @@ public partial class RealtimeClient
     // - Used a custom pipeline.
     // - Demoted the endpoint parameter to be a property in the options class.
     /// <summary> Initializes a new instance of <see cref="RealtimeClient"/>. </summary>
-    /// <param name="credential"> The API key to authenticate with the service. </param>
+    /// <param name="credential"> The <see cref="ApiKeyCredential"/> to authenticate with the service. </param>
     /// <param name="options"> The options to configure the client. </param>
     /// <exception cref="ArgumentNullException"> <paramref name="credential"/> is null. </exception>
     public RealtimeClient(ApiKeyCredential credential, OpenAIClientOptions options) : this(OpenAIClient.CreateApiKeyAuthenticationPolicy(credential), options)