update docs

Author: edumserrano

docs/dev-notes/workflows/test-action-workflow.md

@@ -5,7 +5,9 @@
 [This workflow](/.github/workflows/test-action.yml):
 
 - Contains a step that executes the GitHub action provided by this repo.
-- Runs the action against a test template and a test issue form body.
+- Runs the action against a valid test template and a valid test issue form body.
 - Checks that the output produced by the action is as expected.
+- Runs the action against a valid test template and an invalid test issue form body.
+- Checks that action should have failed the workflow.
 
 Since this workflow executes the [Docker container action](https://docs.github.com/en/actions/creating-actions/creating-a-docker-container-action) it will build and execute the docker container so if there are any issues with the action's [Dockerfile](/Dockerfile) this workflow will detect it.