Update README.md

README.md

@@ -105,9 +105,12 @@ from datasets import load_dataset
 dataset = load_dataset('TiMauzi/imslp-midi-by-nc-sa')
 ```
 
-The data in the column `midi` are raw bytes. You may want to use packages like `mido` to analyze them. For example, to view the content of the first MIDI file, you can use a script as follows:
+The data in the column `midi` are raw bytes. You may want to use [packages like `mido`](https://github.com/mido/mido) to analyze them. For example, to view the content of the first MIDI file, you can use a script as follows:
 
 ```python
+import mido
+import io
+
 train_data = dataset['train']  # assuming you already loaded the dataset as described
 
 # Take the first example