added lotus

README.md

@@ -71,9 +71,10 @@ Contributions are very welcome - please follow the [guidelines](CONTRIBUTING.md)
 - [EPA CompTox](https://comptox.epa.gov/dashboard): is a widely used resource for chemistry, toxicity, and exposure information for hundreds of thousands of chemicals including, but not limited to, chemical properties, environmental fate, and transport, hazard, in vitro to in vivo extrapolation (IVIVE), exposure, bioactivity (each data has its license).
 - [Guide to PHARMACOLOGY](https://www.guidetopharmacology.org/): is an expert-curated resource of ligand-activity-target relationships. It includes activity data even for data with unknown bioactivity value (under CC BY-SA 4.0).
 - [KEGG PATHWAY Database(KEGG)](https://www.genome.jp/kegg/kegg2.html): a database resource for understanding high-level functions and utilities of the biological system, such as the cell, the organism and the ecosystem, from molecular-level information, especially large-scale molecular datasets generated by genome sequencing and other high-throughput experimental technologies.
+- [LOTUS](https://zenodo.org/communities/the-lotus-initiative): harmonization, curation, validation and open dissemination of 750,000+ referenced structure-organism pairs (relationships between molecular structures and the living organisms from which they were identified).
 - [MetXBioDB Metabolite Biotransformations](https://zenodo.org/record/4247792#.Y_uK3NJBypN): a comprehensive collection of biotransformation reactions and metabolite information from the BioTransformer database. It includes the transformation and metabolism of metabolites.
 - [PAMPA Permeability and NCATS dataset](https://doi.org/10.1177/24725552211017520): is a dataset of commonly employed assay to evaluate drug permeability across the cellular membrane to help in ADME prediction.
-- [QSAR datasets - Meta-QSAR (phase I & II)](https://data.mendeley.com/datasets/spwgrcnjdg/1):  Data (extracted from ChEMBL) used in Olier et al. Meta-QSAR: a large-scale application of meta-learning to drug design and discovery.
+- [QSAR datasets - Meta-QSAR (phase I & II)](https://data.mendeley.com/datasets/spwgrcnjdg/1): Data (extracted from ChEMBL) used in Olier et al. Meta-QSAR: a large-scale application of meta-learning to drug design and discovery.
 - [The Human Metabolome Database (HMDB)](https://hmdb.ca/): is a freely available electronic database containing detailed information about small molecule metabolites found in the human body.
 - [The Metabolism and Transport Database ](https://www-metrabase.ch.cam.ac.uk/metrabaseui/pageview/download/): is a cheminformatics and bioinformatics resource that contains curated data related to human small molecule metabolism and transport.