update PR template

Author: galtay

.github/PULL_REQUEST_TEMPLATE.md

@@ -10,7 +10,7 @@ If the following information is NOT present in the issue, please populate:
 ### Checkbox
 
 - [ ] Confirm that this PR is linked to the dataset issue.
-- [ ] Create the dataloader script `biodatasets/my_dataset/my_dataset.py` (please use only lowercase and underscore for dataset naming).
+- [ ] Create the dataloader script `hub/hub_repos/my_dataset/my_dataset.py` (please use only lowercase and underscore for dataset naming).
 - [ ] Provide values for the `_CITATION`, `_DATASETNAME`, `_DESCRIPTION`, `_HOMEPAGE`, `_LICENSE`, `_URLs`, `_SUPPORTED_TASKS`, `_SOURCE_VERSION`, and `_BIGBIO_VERSION` variables.
 - [ ] Implement `_info()`, `_split_generators()` and `_generate_examples()` in dataloader script.
 - [ ] Make sure that the `BUILDER_CONFIGS` class attribute is a list with at least one `BigBioConfig` for the source schema and one for a bigbio schema.