cosmetics changes in README.md

README.md

@@ -103,9 +103,13 @@ A typical data point comprises the `path` to the audio file and its `sentence`.
 
 ### Data Fields
 `path` (`string`): The path to the audio file
+
 `language` (`string`): The language of the audio file
+
 `reader` (`string`): The reader Id in LibriVox
+
 `sentence` (`string`): The sentence the user was prompted to speak
+
 `audio` (`dict`): A dictionary containing the path to the downloaded audio file, the decoded audio array, and the sampling rate. Note that when accessing the audio column: `dataset[0]["audio"]` the audio file is automatically decoded and resampled to `dataset.features["audio"].sampling_rate`. Decoding and resampling of a large number of audio files might take a significant amount of time. Thus it is important to first query the sample index before the `"audio"` column, *i.e.* `dataset[0]["audio"]` should **always** be preferred over `dataset["audio"][0]`.
 
 ### Data Splits