chore: sort lines

README.md

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 - [zinc22](https://cartblanche22.docking.org/): commercially-available compounds for virtual screening
 ## ml structure-property benchmark datasets 
 
-- [Papyrus](https://data.4tu.nl/articles/dataset/Papyrus_-_A_large_scale_curated_dataset_aimed_at_bioactivity_predictions/16896406/3): A large scale curated dataset aimed at bioactivity predictions.
 - [ACNet](https://drugai.github.io/ACNet/): a benchmark for Activity Cliff Prediction, 400K Matched Molecular Pairs (MMPs) against 190 targets, including over 20K MMP-cliffs and 380K non-AC MMPs from ChEMBL (version 28).
 - [Aquasoldb](https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/OVHAW8): Curation of nine open source datasets on aqueous solubility. The authors also assigned reliability groups.
 - [BindingDB](https://www.bindingdb.org/rwd/bind/chemsearch/marvin/Download.jsp): molecular recognition database, contains 2.6M data for 1.1M Compounds and 8.10K Targets (Feb 2023)
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 - [Lipophilicty](https://deepchemdata.s3-us-west-1.amazonaws.com/datasets/Lipophilicity.csv): Experimental results of octanol/water distribution coefficient(logD at pH 7.4).
 - [MoleculeNet](https://moleculenet.org/datasets-1) - Benchmark suite that contains multiple datasets listed here
 - [oechem](https://ochem.eu/home/show.do): On Feb 17 2023 OCHEM contained 3774118 records for 689 properties (with at least 50 records) collected from 20609 sources (user is granted a Creative Commons CC-BY (version 4.0) license to data submitted)
+- [Papyrus](https://data.4tu.nl/articles/dataset/Papyrus_-_A_large_scale_curated_dataset_aimed_at_bioactivity_predictions/16896406/3): A large scale curated dataset aimed at bioactivity predictions. Contains multiple large publicly available datasets such as ChEMBL and ExCAPE-DB combined with smaller datasets.
 - [Photoswitch Dataset](https://github.com/Ryan-Rhys/The-Photoswitch-Dataset): Curated dataset of 405 photoswitch molecules.
 - [QM Datasets](http://quantum-machine.org/datasets/): QM7, QM7b, QM8, QM9, MD Trajectories
 - [SolProp](https://discord.com/channels/850068776544108564/1074753729955381298/1076099689184772116): Database of 1 million solvent/solute COSMO-RS calculations and 10145 experimental solvation free energies (originally published as part of [this paper](https://arxiv.org/abs/2012.11730)).