Update PULL_REQUEST_TEMPLATE.md (#1248)

.github/PULL_REQUEST_TEMPLATE.md

@@ -11,12 +11,12 @@ Please link to any issues this PR addresses.
 What are the changes made in this PR?
 
 #### Test plan
-Please make sure to do each of the following if applicable to your PR. (If you're not sure about any one of these just ask and we will happily help.)
+Please make sure to do each of the following if applicable to your PR. (If you're not sure about any one of these just ask and we will happily help. We also have a [contributing page](../CONTRIBUTING.md) for some guidance on contributing.)
 
 - [ ] run pre-commit hooks and linters (make sure you've first installed via `pre-commit install`)
-- [ ] add unit tests for any new functionality
-- [ ] update docstrings for any new or updated methods or classes
+- [ ] add [unit tests](../tests/torchtune) for any new functionality
+- [ ] update [docstrings](../docs/source) for any new or updated methods or classes
 - [ ] run unit tests via `pytest tests`
 - [ ] run recipe tests via `pytest tests -m integration_test`
 - [ ] manually run any new or modified recipes with sufficient proof of correctness
- - [ ] include relevant commands and any other artifacts in this summary (pastes of loss curves, eval results, etc.)
+- [ ] include relevant commands and any other artifacts in this summary (pastes of loss curves, eval results, etc.)