doc: board: Add QEMU x86 board doc
This extracts QEMU x86 board specific information from README.x86,
converts plain text documentation to reST format and adds it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/doc/board/emulation/index.rst b/doc/board/emulation/index.rst
new file mode 100644
index 0000000..6d533f3
--- /dev/null
+++ b/doc/board/emulation/index.rst
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Emulation
+=========
+
+.. toctree::
+ :maxdepth: 2
+
+ qemu-x86