diff --git a/docs/en/designers/language-basic-syntax/language-syntax-functions.xml b/docs/en/designers/language-basic-syntax/language-syntax-functions.xml
index 0c1e3cd2..df1d6d41 100644
--- a/docs/en/designers/language-basic-syntax/language-syntax-functions.xml
+++ b/docs/en/designers/language-basic-syntax/language-syntax-functions.xml
@@ -9,15 +9,16 @@
   function and its
   <link linkend="language.syntax.attributes">attributes</link>
   into delimiters like so: {funcname
-  attr1="val" attr2="val"}.
+  attr1='val1' attr2='val2'}.
  </para>
  <example>
   <title>function syntax</title>
   <programlisting>
 <![CDATA[
-{config_load file="colors.conf"}
+{config_load file='colors.conf'}
 
-{include file="header.tpl"}
+{include file='header.tpl'}
+{insert file='banner_ads.tpl'}
 
 {if $highlight_name}
     Welcome, <font color="{#fontColor#}">{$name}!</font>
@@ -25,7 +26,7 @@
     Welcome, {$name}!
 {/if}
 
-{include file="footer.tpl"}
+{include file='footer.tpl'}
 ]]>
   </programlisting>
  </example>
@@ -39,11 +40,11 @@
   <link linkend="language.function.if">{if}</link>,
   <link linkend="language.function.section">{section}</link> and
   <link linkend="language.function.strip">{strip}</link>.
-  They cannot be modified.
+  They should not be modified.
   </para>
   <para>Custom functions are <emphasis role="bold">additional</emphasis>
   functions implemented via <link linkend="plugins">plugins</link>.
-  They can be modified to your liking, or you can add new ones.
+  They can be modified to your liking, or you can create new ones.
   <link linkend="language.function.html.options">{html_options}</link> and
   <link linkend="language.function.popup">{popup}</link>
   are examples of custom functions.