Use underscores to match Rome (#32049)

Co-authored-by: Alex Nguyen <150945400+nguyenalex836@users.noreply.github.com>

content/communities/setting-up-your-project-for-healthy-contributions/creating-a-default-community-health-file.md

@@ -47,7 +47,7 @@ Discussion category forms | Discussion category forms customize the templates th
 _FUNDING.yml_ | A FUNDING file displays a sponsor button in your repository to increase the visibility of funding options for your open source project. For more information, see "[AUTOTITLE](/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/displaying-a-sponsor-button-in-your-repository)."{% endif %}
 _GOVERNANCE.md_ | A GOVERNANCE file lets people know about how your project is governed. For example, it might discuss project roles and how decisions are made.
 Issue and pull request templates and _config.yml_ | Issue and pull request templates customize and standardize the information you'd like contributors to include when they open issues and pull requests in your repository. For more information, see "[AUTOTITLE](/communities/using-templates-to-encourage-useful-issues-and-pull-requests/about-issue-and-pull-request-templates)."
-`SECURITY.md` | A SECURITY file gives instructions for how to report a security vulnerability in your project. For more information, see "[AUTOTITLE](/code-security/getting-started/adding-a-security-policy-to-your-repository)."
+_SECURITY.md_ | A SECURITY file gives instructions for how to report a security vulnerability in your project. For more information, see "[AUTOTITLE](/code-security/getting-started/adding-a-security-policy-to-your-repository)."
 _SUPPORT.md_ | A SUPPORT file lets people know about ways to get help with your project. For more information, see "[AUTOTITLE](/communities/setting-up-your-project-for-healthy-contributions/adding-support-resources-to-your-project)."
 
 You cannot create a default license file. License files must be added to individual repositories so the file will be included when a project is cloned, packaged, or downloaded.