Apply commit from doc-en PR 3422

  php/doc-en#3422

Author: Girgias

language/context/parameters.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- EN-Revision: 5faa7a6747bca628b3bdcc9f93aec5603b65581f Maintainer: cucinato Status: ready -->
 
-<refentry xml:id="context.params" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" annotations="verify_info:false">
+<refentry xml:id="context.params" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" annotations="verify_info:false" role="stream_context_option">
  <refnamediv>
   <refname>Parametri di contesto</refname>
   <refpurpose>Lista dei parametri di contesto</refpurpose>