fix codeblock syntax

docs/docs/how-tos/access-logs-loki.md

@@ -77,7 +77,8 @@ Grafana logs can be accessed programmatically from within a Jupyter Notebook or
 - Create a Grafana Service Account and API token by following Grafana docs: https://grafana.com/docs/grafana/latest/administration/service-accounts/
 - Use example code below to retrieve logs from a specific Loki Data Source UID:
 
-```import requests
+```python
+import requests
 from datetime import datetime, timedelta
 import requests
 import json