Update README.md

README.md

@@ -293,7 +293,8 @@ The data includes 36 columns. A `split` column assigns rows into `train`, `val`,
 * RDKit: [https://www.rdkit.org/](https://www.rdkit.org/)
 * Chemical Identifier Resolver, NCI/CADD Group: [https://cactus.nci.nih.gov/](https://cactus.nci.nih.gov/)
 * NIST Chemistry WebBook: [https://webbook.nist.gov/](https://webbook.nist.gov/)
-* Go code for MA complexity computation, obtained privately from the Cronin group
+* Go code for MA complexity computation, obtained privately from the [Cronin group](https://www.chem.gla.ac.uk/cronin/)
+* Böttcher complexity score code from [Boskovic group](https://github.com/boskovicgroup/bottchercomplexity)
 
 ## Citation