Add blog post to Further Reading in Code Security MCP Server page (#35899)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: gorkavicente

content/en/security/code_security/dev_tool_int/mcp_server/_index.md

@@ -4,6 +4,9 @@ description: Use the Datadog Code Security MCP server to run SAST, secrets detec
 is_beta: true
 disable_toc: false
 further_reading:
+- link: "https://www.datadoghq.com/blog/introducing-datadog-code-security-mcp/"
+  tag: "Blog"
+  text: "Introducing the Datadog Code Security MCP Server"
 - link: "https://www.datadoghq.com/blog/monitor-mcp-servers/"
   tag: "Blog"
   text: "Identify common security risks in MCP servers"