Doc: Add Changes Qt 5 to Qt 6 page to Qt WebSockets

Add a basic changes page for consistency with other modules.

Task-number: QTBUG-94932
Change-Id: I21428ba4bef08b4a9b50386d03c391d13f5545d0
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
(cherry picked from commit f252d28b9130bcc3b9bd2e72a4357326b0216ca4)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 44 insertions, 0 deletions

diff --git a/src/websockets/doc/src/qt6-changes.qdoc b/src/websockets/doc/src/qt6-changes.qdoc
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+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \page qtwebsockets-changes-qt6.html
+    \title Changes to Qt WebSockets
+    \ingroup changes-qt-5-to-6
+    \brief Migrate Qt WebSockets to Qt 6.
+
+    Qt 6 is a result of the conscious effort to make the framework more
+    efficient and easy to use.
+
+    We try to maintain binary and source compatibility for all the public
+    APIs in each release. But some changes were inevitable in an effort to
+    make Qt a better framework.
+
+    In this topic we summarize those changes in Qt WebSockets, and provide guidance
+    to handle them.
+
+*/