ZF-7307: Document charset adapter option

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@16846 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/module_specs/Zend_Db_Adapter.xml

@@ -313,6 +313,12 @@ $db = Zend_Db::factory($config->database);
                         on the RDBMS server.
                     </para>
                 </listitem>
+				<listitem>
+                    <para>
+                        <emphasis>charset</emphasis>:
+						specify the charset used for the connection.
+                    </para>
+                </listitem>
                 <listitem>
                     <para>
                         <emphasis>options</emphasis>: