Add entry in readme showcasing new trino feature

README.md

@@ -143,6 +143,28 @@ with Flow(...) as flow:
         print("The data is bad!!!")
 ```
 
+**Run a Great Expectations validation on a Trino query**
+
+```python
+from lolafect.data_testing import run_data_test_on_trino
+
+with Flow(...) as flow:
+      
+    my_query = """SELECT something FROM somewhere"""
+    my_expectations = {...} # A bunch of things you want to validate on the result of the query
+    
+    validation_results = run_data_test_on_trino(
+        name="my-cool-validation",
+        trino_credentials={...},
+        query=my_query,
+        expectations=my_expectations
+    )
+
+    if not validation_results["success"]:
+        print("The data is bad!!!")
+```
+
+
 ### Slack
 
 **Send a warning message to slack if your tasks fails**