Merge pull request #572 from nginx/DOC-489-agent

fix: add missing catalog entry

Author: JTorreG

site/content/installation-upgrade/container-environments/docker-images.md

@@ -6,6 +6,7 @@ toc: true
 tags: [ "docs" ]
 categories: ["configuration"]
 doctypes: ["task"]
+docs: "DOCS-1410"
 ---
 
 ## Overview