diff --git a/multi/multi__gatewayfilter_factories.html b/multi/multi__gatewayfilter_factories.html
index 0fe5b374..95bf69a0 100644
--- a/multi/multi__gatewayfilter_factories.html
+++ b/multi/multi__gatewayfilter_factories.html
@@ -1,6 +1,6 @@
 <html><head>
       <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-   <title>5.&nbsp;GatewayFilter Factories</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="up" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="prev" href="multi_gateway-request-predicates-factories.html" title="4.&nbsp;Route Predicate Factories"><link rel="next" href="multi__global_filters.html" title="6.&nbsp;Global Filters"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">5.&nbsp;GatewayFilter Factories</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_gateway-request-predicates-factories.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi__global_filters.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_gatewayfilter_factories" href="#_gatewayfilter_factories"></a>5.&nbsp;GatewayFilter Factories</h1></div></div></div><p>Route filters allow the modification of the incoming HTTP request or outgoing HTTP response in some manner. Route filters are scoped to a particular route. Spring Cloud Gateway includes many built-in GatewayFilter Factories.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_addrequestheader_gatewayfilter_factory" href="#_addrequestheader_gatewayfilter_factory"></a>5.1&nbsp;AddRequestHeader GatewayFilter Factory</h2></div></div></div><p>The AddRequestHeader GatewayFilter Factory takes a name and value parameter.</p><p><b>application.yml.&nbsp;</b>
+   <title>5.&nbsp;GatewayFilter Factories</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="up" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="prev" href="multi_gateway-request-predicates-factories.html" title="4.&nbsp;Route Predicate Factories"><link rel="next" href="multi__global_filters.html" title="6.&nbsp;Global Filters"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">5.&nbsp;GatewayFilter Factories</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_gateway-request-predicates-factories.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi__global_filters.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_gatewayfilter_factories" href="#_gatewayfilter_factories"></a>5.&nbsp;GatewayFilter Factories</h1></div></div></div><p>Route filters allow the modification of the incoming HTTP request or outgoing HTTP response in some manner. Route filters are scoped to a particular route. Spring Cloud Gateway includes many built-in GatewayFilter Factories.</p><p>NOTE For more detailed examples on how to use any of the following filters, take a look at the <a class="link" href="https://github.com/spring-cloud/spring-cloud-gateway/tree/master/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory" target="_top">unit tests</a>.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_addrequestheader_gatewayfilter_factory" href="#_addrequestheader_gatewayfilter_factory"></a>5.1&nbsp;AddRequestHeader GatewayFilter Factory</h2></div></div></div><p>The AddRequestHeader GatewayFilter Factory takes a name and value parameter.</p><p><b>application.yml.&nbsp;</b>
 </p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">spring</span>:
 <span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">  cloud</span>:
 <span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">    gateway</span>:
diff --git a/single/spring-cloud-gateway.html b/single/spring-cloud-gateway.html
index ed81a11b..ab8b6026 100644
--- a/single/spring-cloud-gateway.html
+++ b/single/spring-cloud-gateway.html
@@ -117,7 +117,7 @@ If two hops of trusted infrastructure are required before Spring Cloud Gateway i
 .route(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"proxied-route"</span>,
     r -&gt; r.remoteAddr(resolver,  <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"10.10.1.1"</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"10.10.1.1/24"</span>)
         .uri(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"https://downstream2"</span>)
-)</pre></div></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_gatewayfilter_factories" href="#_gatewayfilter_factories"></a>5.&nbsp;GatewayFilter Factories</h1></div></div></div><p>Route filters allow the modification of the incoming HTTP request or outgoing HTTP response in some manner. Route filters are scoped to a particular route. Spring Cloud Gateway includes many built-in GatewayFilter Factories.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_addrequestheader_gatewayfilter_factory" href="#_addrequestheader_gatewayfilter_factory"></a>5.1&nbsp;AddRequestHeader GatewayFilter Factory</h2></div></div></div><p>The AddRequestHeader GatewayFilter Factory takes a name and value parameter.</p><p><b>application.yml.&nbsp;</b>
+)</pre></div></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_gatewayfilter_factories" href="#_gatewayfilter_factories"></a>5.&nbsp;GatewayFilter Factories</h1></div></div></div><p>Route filters allow the modification of the incoming HTTP request or outgoing HTTP response in some manner. Route filters are scoped to a particular route. Spring Cloud Gateway includes many built-in GatewayFilter Factories.</p><p>NOTE For more detailed examples on how to use any of the following filters, take a look at the <a class="link" href="https://github.com/spring-cloud/spring-cloud-gateway/tree/master/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory" target="_top">unit tests</a>.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_addrequestheader_gatewayfilter_factory" href="#_addrequestheader_gatewayfilter_factory"></a>5.1&nbsp;AddRequestHeader GatewayFilter Factory</h2></div></div></div><p>The AddRequestHeader GatewayFilter Factory takes a name and value parameter.</p><p><b>application.yml.&nbsp;</b>
 </p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">spring</span>:
 <span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">  cloud</span>:
 <span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">    gateway</span>:
diff --git a/spring-cloud-gateway.xml b/spring-cloud-gateway.xml
index ed4c0270..741916af 100644
--- a/spring-cloud-gateway.xml
+++ b/spring-cloud-gateway.xml
@@ -316,6 +316,7 @@ If two hops of trusted infrastructure are required before Spring Cloud Gateway i
 <chapter xml:id="_gatewayfilter_factories">
 <title>GatewayFilter Factories</title>
 <simpara>Route filters allow the modification of the incoming HTTP request or outgoing HTTP response in some manner. Route filters are scoped to a particular route. Spring Cloud Gateway includes many built-in GatewayFilter Factories.</simpara>
+<simpara>NOTE For more detailed examples on how to use any of the following filters, take a look at the <link xl:href="https://github.com/spring-cloud/spring-cloud-gateway/tree/master/spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory">unit tests</link>.</simpara>
 <section xml:id="_addrequestheader_gatewayfilter_factory">
 <title>AddRequestHeader GatewayFilter Factory</title>
 <simpara>The AddRequestHeader GatewayFilter Factory takes a name and value parameter.</simpara>
