update README

README.md

@@ -24,8 +24,8 @@ Load a test/train split using
 
 ```
 from datasets import load_dataset
-train = load_dataset("jglaser/protein_ligand_contacts",split='train[:90%]')
-validation = load_dataset("jglaser/protein_ligand_contacts",split='train[90%:]')
+train = load_dataset("jglaser/pdbbind_complexes",split='train[:90%]')
+validation = load_dataset("jglaser/pdbbind_complexes",split='train[90%:]')
 ```
 
 ### Pre-process yourself