Merge pull request #178 from MarcoIeni/docs-document-how-to-see-logs-in-tests

docs: document how to see logs in tests

Author: Kobzol

docs/development.md

@@ -110,3 +110,7 @@ $ cargo sqlx prepare -- --tests
 ```
 
 After that, you should commit the changes to the `.sqlx` directory.
+
+## Logs in tests
+By default, logs are disabled in tests. To enable them, add `#[traced_test]`
+on top of the test function.