re-order section

tests/README.md

@@ -120,15 +120,17 @@ See [tests/README.testing-data.md](https://github.com/piwik/piwik/blob/master/te
 See [tests/README.screenshots.md](https://github.com/piwik/piwik/blob/master/tests/README.screenshots.md)
 
 ## Build artifacts
+
+### Download build artifacts for any recent commit
+
+You can retrieve the files generated during the build (the build artifacts) at [builds-artifacts.piwik.org](http://builds-artifacts.piwik.org/)
+
 ### Test logs on CI
 
 By default tests running on Travis CI will log all messages of at least `INFO` level in `$PIWIK_ROOT_DIR/tmp/logs/piwik.log`. In a given travis build output, you can view the logs by clicking on the line `$ cat $PIWIK_ROOT_DIR/tmp/logs/piwik.log` at the end of the build output text.
 
 Note: `DEBUG` and `VERBOSE` messages are not logged by default (to keep Travis page loading fast). At any time you can temporarirly enable logging by [modifying this file](https://github.com/piwik/piwik/blob/master/tests/PHPUnit/config.ini.travis.php#L23-27) and changing `log_level = info` to `log_level = debug` or `log_level = verbose`.
 
-### Build artifacts
-
-You can retrieve the files generated during the build (the build artifacts) at [builds-artifacts.piwik.org](http://builds-artifacts.piwik.org/)
 
 ### Screenshot tests build artifacts