help: minor improvement in example usage of 'ARTICLE:'

basis/help/help-docs.factor

@@ -491,8 +491,10 @@ HELP: ARTICLE:
 { $description "Defines a help article. String topic names are reserved for core documentation. Contributed modules should name articles by arrays, where the first element of an array identifies the module; for example, " { $snippet "{ \"httpd\" \"intro\" }" } "." }
 { $examples
     { $code
+        "USING: help help.syntax ;"
         "ARTICLE: \"example\" \"An example article\""
         "\"Hello world.\" ;"
+        "\"example\" help"
     }
 } ;