Update readme

README.md

@@ -3,17 +3,17 @@
 Test data for the ethology Python package.
 
 ## General guidelines
-When adding test data for a specific test module, please include it as a `.zip` file with the following structure:
+When adding test data to test a specific module, please include under a subdirectory with the following structure:
 
 ```bash
-test_data/test_<module-name>.zip
+test_data/test_<module-name>/
 ```
 
-This will allow yus to make efficient use of the pooch library and pytest fixtures.
+This will allow us to make efficient use of the `pooch` library and the `pytest` fixtures.
 
 ## Adding or editing data
 
-Remember to update the file registry for `pooch` after adding or editing the data! 
+Remember to update the file registry at `files-registry.txt` after adding or editing the data! 
 
 To do so, run the following from the root of the GIN repository: