Fix formatting in reviewer checklists section

Author: RayStick

README.md

@@ -33,7 +33,7 @@ This workflow automatically assigns labels to a PR if the PR edits a specific fi
 ### 4 - welcome bot app, defined in [config.yml](https://github.com/physiopy/physiopy-test-workflows/blob/master/.github/config.yml)
 This bot automatically posts welcome and thank you messages when a contributor posts their first issue, first PR, and merges first PR. This is a nice way to welcome and thank new contributors, but also acts as an opportunity to direct them towards the relevant contributor guidelines, as needed.
 
-### 5 - reviewer checklists on a PR (description to come once workflow finalised)
+### 5 - reviewer checklists on a PR (description to come - once workflow finalised)
 
 Example: