Fix screenshot for Monitoring doc (Azure-Samples#2355)

* Fix screenshot

* Update results_dir

* Results dir

Author: pamelafox

docs/monitoring.md

@@ -12,7 +12,7 @@ By default, deployed apps use Application Insights for the tracing of each reque
 To see the performance data, go to the Application Insights resource in your resource group, click on the "Investigate -> Performance" blade and navigate to any HTTP request to see the timing data.
 To inspect the performance of chat requests, use the "Drill into Samples" button to see end-to-end traces of all the API calls made for any chat request:
 
-![Tracing screenshot](docs/images/transaction-tracing.png)
+![Tracing screenshot](images/transaction-tracing.png)
 
 ## Failures
 

evals/evaluate_config.json

@@ -1,6 +1,6 @@
 {
     "testdata_path": "ground_truth.jsonl",
-    "results_dir": "results/gpt-4o-mini",
+    "results_dir": "results/experiment<TIMESTAMP>",
     "requested_metrics": ["gpt_groundedness", "gpt_relevance", "answer_length", "latency", "citations_matched", "any_citation"],
     "target_url": "http://localhost:50505/chat",
     "target_parameters": {