Update README.md

Author: dsyme

README.md

@@ -7,7 +7,6 @@ A sample family of reusable [GitHub Agentic Workflows](https://github.github.com
 ### Triage Workflows
 
 - [🏷️ Issue Triage](docs/issue-triage.md) - Triage issues and pull requests
-- [🔒 Sub-Issue Closer](docs/sub-issue-closer.md) - Automatically close parent issues when all sub-issues are complete
 
 ## Fault Analysis Workflows