fix borken whitespace (#1589)

.github/PULL_REQUEST_TEMPLATE.MD

@@ -15,10 +15,11 @@
 - [ ] I have implemented unit tests that cover any new or modified functionality
 - [ ] CHANGELOG.md has been updated with any functionality change
 - [ ] Request review from all relevant developers
-- [ ] Change pull request label to 'Waiting for review' 
+- [ ] Change pull request label to 'Waiting for review'
 
 ## Contribution Notes
 
 Please read and adhere to the [developer guide](https://tomographicimaging.github.io/CIL/nightly/developer_guide.html) and local patterns and conventions.
- - [ ] The content of this Pull Request (the Contribution) is intentionally submitted for inclusion in CIL (the Work) under the terms and conditions of the [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0) License.
- - [ ] I confirm that the contribution does not violate any intellectual property rights of third parties
+
+- [ ] The content of this Pull Request (the Contribution) is intentionally submitted for inclusion in CIL (the Work) under the terms and conditions of the [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0) License.
+- [ ] I confirm that the contribution does not violate any intellectual property rights of third parties