diff --git a/_posts/2023/2023-09-19-github-actions-custom-actions.md b/_posts/2023/2023-09-19-github-actions-custom-actions.md
index ed91c663..7ac89dff 100644
--- a/_posts/2023/2023-09-19-github-actions-custom-actions.md
+++ b/_posts/2023/2023-09-19-github-actions-custom-actions.md
@@ -21,7 +21,9 @@ gallery:
 ## Actions checkout location in workflow
 
 {% raw %}
-Actions are automatically checked out by Github Action from the beginning of a workflow run, the checkout path could be found by: env var [$GITHUB_ACTION_PATH](https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables), github context [${{ github.action_path }}](https://docs.github.com/en/actions/learn-github-actions/contexts#github-context).
+Actions are automatically checked out by Github Action from the beginning of a workflow run, the checkout path could be found by: env var [$GITHUB_ACTION_PATH](https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables), github context [${{ github.action_path }}](https://docs.github.com/en/actions/learn-github-actions/contexts#github-context). This is very useful when you need to [reference some files or scripts](https://stackoverflow.com/a/73839061/5095636) saved in the same repository as the actions.
+
+```yaml
 {% endraw %}
 
 ```bash