Update README.md

README.md

@@ -187,7 +187,7 @@ then load, featurize, split, fit, and evaluate the catboost model
         predictions=preds["cat_boost_regressor::Solubility"])    
 
 
-## Aqueous Solubility 
+## Aqueous Solubility Database
 
 ### Data splits
 The original AqSoDB dataset does not define splits, so here we have used the `Realistic Split` method described