update data readme

data/README.md

@@ -6,11 +6,11 @@ commitments. The objects in this directory have well-known commitments. They ser
 by the Espresso Sequencer, and can be used as test cases for ports of the serialization and commitment algorithms to
 other languages.
 
-The Rust module `sequencer::reference_tests` contains test cases which are designed to fail if the serialization format
+The Rust module `espresso-types::reference_tests` contains test cases which are designed to fail if the serialization format
 or commitment scheme for any of these data types changes. If you make a breaking change, you may need to update these
 reference objects as well. Running those tests will also print out information about the commitments of these reference
 objects, which can be useful for generating test cases for ports. To run them and get the output, use
 
 ```bash
-cargo test --all-features -p sequencer -- --nocapture --test-threads 1 reference_tests
+cargo test --all-features -p espresso-types -- --nocapture --test-threads 1 reference_tests
 ```