another update docs

docs/wiki/make-elpis-release.md

@@ -42,6 +42,7 @@ Check that app runs with the new image. This isn't mounting any local repos in s
 docker run --rm -p 5000:5000/tcp elpis-latest-test
 ```
 
+Open `http://0.0.0.0:5000` in a browser, and do train and test with at least a [toy corpus](https://github.com/CoEDL/toy-corpora). For Kaldi, use the Abui toy corpus. The Na toy corpus may be more suitable for checking ESPnet or HFT engines.
 
 If it's all good, retag the image with the coedl org and push it to the Docker Hub