Update README.md

README.md

@@ -46,9 +46,9 @@ To combine the metadata with the galaxy images you can do (for example):
 from datasets import load_dataset, concatenate_datasets
 
 # Load the `galaxies' dataset with metadata
-metadata = load_dataset("Smith42/galaxies_metadata", streaming=True)
 galaxies = load_dataset("Smith42/galaxies", streaming=True)
-combined = concatenate_datasets([galaxies['train'], metadata['train']])
+metadata = load_dataset("Smith42/galaxies_metadata", streaming=True).remove_columns("dr8_id")
+combined = concatenate_datasets([galaxies['train'], metadata['train']], axis=1)
 ```
 The metadata is also available in parquet format in the root dir of this repo. 
 You can link the metadata with the galaxies via their dr8_id.