doc: Add architecture specific info to Sphinx TOC tree
Add index.rst for architecture specific info. More docs will be
added later.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/doc/arch/index.rst b/doc/arch/index.rst
new file mode 100644
index 0000000..a03ee6b
--- /dev/null
+++ b/doc/arch/index.rst
@@ -0,0 +1,7 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Architecture-specific doc
+=========================
+
+.. toctree::
+ :maxdepth: 2