Documentation: dev-tools: properly format ToC headingss
"class:: toc-title" was a workaround for older Sphinx versions that are
no longer supported.
The canonical way to add a heading to the ToC is to use :caption:.
Do that.
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: gaochao <gaochao49@huawei.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Wu XiangCheng <bobwxc@email.cn>
Cc: Fangrui Song <maskray@google.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Alex Shi <alexs@kernel.org>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231027081830.195056-6-vegard.nossum@oracle.com
diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst
index 6b06630..3d2286c 100644
--- a/Documentation/dev-tools/index.rst
+++ b/Documentation/dev-tools/index.rst
@@ -10,11 +10,8 @@
A brief overview of testing-specific tools can be found in
Documentation/dev-tools/testing-overview.rst
-.. class:: toc-title
-
- Table of contents
-
.. toctree::
+ :caption: Table of contents
:maxdepth: 2
testing-overview
diff --git a/Documentation/translations/zh_CN/dev-tools/index.rst b/Documentation/translations/zh_CN/dev-tools/index.rst
index 02577c3..c2db3e5 100644
--- a/Documentation/translations/zh_CN/dev-tools/index.rst
+++ b/Documentation/translations/zh_CN/dev-tools/index.rst
@@ -14,11 +14,8 @@
有关测试专用工具的简要概述，参见
Documentation/translations/zh_CN/dev-tools/testing-overview.rst
-.. class:: toc-title
-
- 目录
-
.. toctree::
+ :caption: 目录
:maxdepth: 2
testing-overview
