Update README.md

README.md

@@ -82,6 +82,14 @@ This dataset captures transcriptional responses of **A549**, a human lung adenoc
 
 Each compound was applied for **24 hours** across **seven doses**, in **triplicate**, resulting in **84 compound–dose–replicate conditions**, along with additional vehicle controls. Single-cell transcriptional profiles were generated using **sci-RNA-seq**.
 
+## Additional Information
+
+- **Normalized counts** were scaled so that the total expression per cell sums to `1e4`.
+- **Control counts** represent the average expression of each gene across all control cells.
+- **Delta values** are computed as the difference between each sample's expression and the corresponding control mean.
+- **SMILES** strings and **mechanism of action (MoA)** annotations were retrieved from the [ChEMBL](https://www.ebi.ac.uk/chembl/) database and enhanced with additional sources.
+
+
 ## Citation
 
 > Srivatsan, S. R., McFaline-Figueroa, J. L., Ramani, V. *et al.*