Doc: XML processing overview

Changed the location from QtBase to QDoc for the consistency of overviews

Fixes: QTBUG-83872
Change-Id: I0e5b8e2ec149925da302299136f297ef978ba40a
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit 384fd011b346a8eb570dfe240c550cd44723daec)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 33 insertions, 3 deletions

diff --git a/doc/src/topics.qdoc b/doc/src/topics.qdoc
index eb37d4dd..7bd071a6 100644
--- a/doc/src/topics.qdoc
+++ b/doc/src/topics.qdoc
@@ -19,9 +19,7 @@ functionality and can be used as a starting point for learning how to to get the
 \li \l{Mobile Development}
 \li \l{QML Applications}
 \li \l{Platform Integration}
-\endlist
-
-\list
+\li \l{XML Processing}
 \li \l {Scripting}
 \li \l {Internationalization with Qt}
 \li \l {Testing and Debugging}
diff --git a/doc/src/xml-overview.qdoc b/doc/src/xml-overview.qdoc
new file mode 100644
index 00000000..06a1e040
--- /dev/null
+++ b/doc/src/xml-overview.qdoc
@@ -0,0 +1,32 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \page xml-processing.html
+    \title XML Processing
+    \brief An Overview of the XML processing facilities in Qt.
+
+    Qt provides two sets of APIs to read and write well-formed XML: \l{XML Streaming}{stream based} and
+    \l{Working with the DOM Tree}{DOM based}.
+
+    Qt also provides specific support for some XML dialects. The Qt SVG module
+    provides the QSvgRenderer and QSvgGenerator classes to read
+    and write a subset of SVG, an XML-based file format. Qt also provides helper
+    functions that may be useful to those working with XML and XHTML:
+    see Qt::escape() and Qt::convertFromPlainText().
+
+    \section1 Topics:
+
+    \list
+    \li \l {Classes for XML Processing}
+    \li \l {An Introduction to Namespaces}
+    \li \l {XML Streaming}
+    \li \l {Working with the DOM Tree}
+    \endlist
+
+    \section1 Classes for XML Processing
+
+    These classes are relevant to XML users.
+
+    \annotatedlist xml-tools
+*/