Add a link to the Sonarqube use case guide

Signed-off-by: Usha Mandya <usha.mandya@docker.com>

Author: usha-mandya

content/manuals/ai/mcp-catalog-and-toolkit/sandboxes.md

@@ -457,7 +457,8 @@ You can extend this example to combine any of the 200+ MCP servers in the Docker
 
 ## Related pages
 
-- [Docker MCP Toolkit and catalog](/manuals/ai/mcp-catalog-and-toolkit/_index.md)
-- [Docker MCP Gateway](/manuals/ai/mcp-catalog-and-toolkit/mcp-gateway.md)
+- [How to build an AI-powered code quality workflow with SonarQube and E2B](/guides/github-sonarqube-sandbox.md)
 - [Docker + E2B: Building the Future of Trusted AI](https://www.docker.com/blog/docker-e2b-building-the-future-of-trusted-ai/)
+- [Docker MCP Toolkit and Catalog](/manuals/ai/mcp-catalog-and-toolkit/_index.md)
+- [Docker MCP Gateway](/manuals/ai/mcp-catalog-and-toolkit/mcp-gateway.md)
 - [E2B MCP documentation](https://e2b.dev/docs/mcp)