Update README.md

README.md

@@ -38,6 +38,16 @@ To train the model, use:
 ./fasttext supervised -input train.ft.txt -output model_amzn
 ```
 
+This should take a few minutes.
+
+To test:
+
+```bash
+./fasttext test model_amzn.bin test.ft.txt
+```
+
+Expect precision and recall of 0.916 if all is in order.
+
 ## Acknowledgments
 
 Dataset obtained from https://www.kaggle.com/datasets/bittlingmayer/amazonreviews/data