diff --git a/documentation/20.11/eiffelstudio/Tutorials/appendix-writing-documentation-filters-eff-eiffel-filter-format.wiki b/documentation/20.11/eiffelstudio/Tutorials/appendix-writing-documentation-filters-eff-eiffel-filter-format.wiki
index dc0c1258..c923f045 100644
--- a/documentation/20.11/eiffelstudio/Tutorials/appendix-writing-documentation-filters-eff-eiffel-filter-format.wiki
+++ b/documentation/20.11/eiffelstudio/Tutorials/appendix-writing-documentation-filters-eff-eiffel-filter-format.wiki
@@ -1,5 +1,5 @@
 [[Property:link_title|Writing Filters with EFF]]
-[[Property:modification_date|Mon, 22 Feb 2021 12:35:36 GMT]]
+[[Property:modification_date|Mon, 22 Feb 2021 12:48:18 GMT]]
 [[Property:publication_date|Thu, 11 Feb 2021 07:55:20 GMT]]
 [[Property:title|Writing Documentation Filters with EFF, the Eiffel Filter Format]]
 [[Property:weight|6]]
@@ -198,50 +198,50 @@ We show sample code taken from existing filter files to demonstrate the basic st
 Note in both examples the position of the <code>*</code>place holder that will contain the expanded page body for the referenced construct.
 
 
-=== - webpages===
+====webpages====
 
 To replace the <code>default.css</code> copied into your Documentation directory write your own stylesheet based on it and save under a different name. Important: chose a different name or EiffelStudio will overwrite it. Add any scripting files to the Documentation directory if required. Font choice is of course also a user option. Note the generated <code>goto.html</code> file (not a standalone webpage) that contains the navigation thru the generated webpages and is expected to be included by the page skeleton. Replace and add any required inclusion links into the <code>HEAD</code> section of the webpage. 
 
 
 <code lang=html>
 class_declaration	|%
-				%<!DOCTYPE html>%N%
-				%<html>%N%
-				%<head>%N%
-				%<meta name="generator" content="$generator$">%N%
-				%$html_meta$%
-				%<meta name="viewport" content="width=device-width%, initial-scale=1.0">%N%
-				%<link href="https://fonts.googleapis.com/css?family=PT+Sans" rel="stylesheet">%N%
-				%<title>$title$</title>%N%
-				%<link rel="stylesheet" href="$root$default.css" type="text/css">%N%
-				%<script type="text/javascript" src="$root$goto.html"></script>%N%
-				%</head>%N%
-				%<body>%N%
-				%<pre>*</pre>%N%
-				%<p style="text-align:center;">Generated by <a href="http://www.eiffel.com">ISE EiffelStudio</a></p>%N%
-				%</body>%N%
-				%</html>%N
+		%<!DOCTYPE html>%N%
+		%<html>%N%
+		%<head>%N%
+		%<meta name="generator" content="$generator$">%N%
+		%$html_meta$%
+		%<meta name="viewport" content="width=device-width%, initial-scale=1.0">%N%
+		%<link href="https://fonts.googleapis.com/css?family=PT+Sans" rel="stylesheet">%N%
+		%<title>$title$</title>%N%
+		%<link rel="stylesheet" href="$root$default.css" type="text/css">%N%
+		%<script type="text/javascript" src="$root$goto.html"></script>%N%
+		%</head>%N%
+		%<body>%N%
+		%<pre>*</pre>%N%
+		%<p style="text-align:center;">Generated by <a href="http://www.eiffel.com">ISE EiffelStudio</a></p>%N%
+		%</body>%N%
+		%</html>%N
 </code>
 
 
-===- for printing===
+====for printing====
 
 Here a sample coding for RTF formatted output, to be run thru some comaptible word processor for pretty printing.
 
 
 <code  lang=text>
 Cluster_declaration, Class_declaration	|%
-				%{\rtf1\ansi\ansicpg1252\deflang1033{\fonttbl{\f0\fscript\fcharset0 Courier;}}%
-				%{\colortbl ;\red0\green0\blue0;\red255\green255\blue255;\red128\green0\blue0;%
-				%\red0\green0\blue255;\red0\green128\blue0;\red0\green0\blue128;}%N%
-				%{\cf3\f0\fs16 {\tab}{\tab}{\tab}%-%- Automatic generation produced by ISE Eiffel %-%-%N%
-				%{\line}%N%
-				%{*}%N%
-				%{\line}%N%
-				%{\cf3 {\tab}{\tab}{\tab}%-%- Generated by ISE Eiffel %-%-}%N%
-				%{\line}%N%
-				%{\cf3{\tab}{\tab}{\tab}%-%- For more details: http://www.eiffel.com %-%-}%N%
-				%}}%N
+		%{\rtf1\ansi\ansicpg1252\deflang1033{\fonttbl{\f0\fscript\fcharset0 Courier;}}%
+		%{\colortbl ;\red0\green0\blue0;\red255\green255\blue255;\red128\green0\blue0;%
+		%\red0\green0\blue255;\red0\green128\blue0;\red0\green0\blue128;}%N%
+		%{\cf3\f0\fs16 {\tab}{\tab}{\tab}%-%- Automatic generation produced by ISE Eiffel %-%-%N%
+		%{\line}%N%
+		%{*}%N%
+		%{\line}%N%
+		%{\cf3 {\tab}{\tab}{\tab}%-%- Generated by ISE Eiffel %-%-}%N%
+		%{\line}%N%
+		%{\cf3{\tab}{\tab}{\tab}%-%- For more details: http://www.eiffel.com %-%-}%N%
+		%}}%N
 </code>
 
 
