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README.md

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 # Galaxies for training astroPT
 
+Here we have ~8.5 million galaxy cutouts from the [DESI legacy survey DR8](https://www.legacysurvey.org/dr8/description/).
+The cut outs are 512x512 pixel jpg images centred on the galaxy source.
+
+There is also accompanying metadata!
+The metadata is in parquet format in the root dir of this repo. 
+You can link the metadata with the galaxies via their dr8_id.
+
+## Useful links
+
 Models here: [https://huggingface.co/Smith42/astroPT](https://huggingface.co/Smith42/astroPT)
 
 Code here: [https://github.com/smith42/astroPT](https://github.com/smith42/astroPT)
 
-
-Soon will have galaxy metadata.
+Upstream catalogue is [on Zenodo](https://zenodo.org/records/8360385) and paper describing the catalogue is available as [Walmsley+2023](https://doi.org/10.1093/mnras/stad2919).