Update plugin-list.asciidoc

Author: patrykkopycinski

docs/developer/plugin-list.asciidoc

@@ -471,7 +471,7 @@ Elastic.
 
 
 |{kib-repo}blob/{branch}/x-pack/plugins/osquery/README.md[osquery]
-|A Kibana plugin
+|This plugin adds extended support to Security Solution Fleet Osquery integration
 
 
 |{kib-repo}blob/{branch}/x-pack/plugins/painless_lab/README.md[painlessLab]