Update setup.sh

setup.sh

@@ -1,2 +1,3 @@
 #!/bin/bash
-pip install torch_sparse -f https://data.pyg.org/whl/torch-1.12.0+cpu.html
+pip install torch_sparse -f https://data.pyg.org/whl/torch-1.12.0+cpu.html
+pip install torch_scatter -f https://data.pyg.org/whl/torch-1.12.0+cpu.html