[gimp-help] Add missing documentation for menu View/Center Image in Window

[Jacob Boerema <jboerema src gnome org>]

commit ab984158e79b9e41deda769a1e7432e4f4c56b2a
Author: Jacob Boerema <jgboerema gmail com>
Date:   Sat May 28 22:34:24 2022 -0400

    Add missing documentation for menu View/Center Image in Window

 src/menus/view.xml               |  1 +
 src/menus/view/scroll-center.xml | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)
---
diff --git a/src/menus/view.xml b/src/menus/view.xml
index 8b481ce35..0607966c9 100644
--- a/src/menus/view.xml
+++ b/src/menus/view.xml
@@ -20,6 +20,7 @@
   <xi:include href="view/dot-for-dot.xml"/>
   <xi:include href="view/zoom.xml"/>
   <xi:include href="view/flip-rotate.xml"/>
+  <xi:include href="view/scroll-center.xml"/>
   <xi:include href="view/shrink-wrap.xml"/>
   <xi:include href="view/fullscreen.xml"/>
   <xi:include href="view/navigwindow.xml"/>
diff --git a/src/menus/view/scroll-center.xml b/src/menus/view/scroll-center.xml
new file mode 100644
index 000000000..57e2870f0
--- /dev/null
+++ b/src/menus/view/scroll-center.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE sect2 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+                       "http://www.docbook.org/xml/4.5/docbookx.dtd";>
+<sect2 id="gimp-view-scroll-center">
+  <title>Center Image in Window</title>
+
+  <indexterm>
+    <primary>Center Image in Window</primary>
+  </indexterm>
+  <para>
+    The <guimenuitem>Center Image in Window</guimenuitem> command scrolls the
+    image so that it is exactly centered in the window.
+  </para>
+
+  <sect3>
+    <title>Activating the Command</title>
+    <itemizedlist>
+      <listitem>
+        <para>
+          From the menu through
+          <menuchoice>
+            <guimenu>View</guimenu>
+            <guimenuitem>Center Image in Window</guimenuitem>
+          </menuchoice>.
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          By using the keyboard shortcut
+          <keycombo><keycap>Shift</keycap><keycap>J</keycap></keycombo>.
+        </para>
+      </listitem>
+    </itemizedlist>
+  </sect3>
+</sect2>