Update LLM API Router Service

LLM-API-Router-Service.md

@@ -32,6 +32,10 @@ configuration is provided through a `LLMApiRouterConfiguration` object.
 `AllLLMServicesUnavailableException`.
     * The request is routed to the selected `LLMService`.
         * This call is wrapped in the `autoRetry` method
+        *   depending on the endpoint, the `shortTimeout` parameter is set
+            *   `true` for `processQuery`
+            *   `false` for `generateSummary`
+            
 
 > **Note** The service selection mechanism is implemented in the `currentService` property.  
 > This property is evaluated for each access, so it should always return an `LLMService` that is flagged as `operational`