Man pages in docs/system use file inclusion heavily.  Use headings with
overlines in the main files, so that the same included file work well
from both manuals and man pages.

This style of heading is a bit more heavy-weight, so it is not used by
the other man pages in interop/ and tools/.  If in the future they
are changed to use include files, for example to avoid having sections
named "synopsis" or "description", they can switch to --- with overline
as well.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 docs/system/qemu-block-drivers.rst | 3 +++
 docs/system/qemu-cpu-models.rst    | 9 ++++++---
 docs/system/qemu-manpage.rst       | 5 +++++
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/docs/system/qemu-block-drivers.rst b/docs/system/qemu-block-drivers.rst
index eb276481d6..c2c0114cec 100644
--- a/docs/system/qemu-block-drivers.rst
+++ b/docs/system/qemu-block-drivers.rst
@@ -4,16 +4,19 @@
 QEMU block drivers reference
 ============================
 
+--------
 Synopsis
 --------
 
 QEMU block driver reference manual
 
+-----------
 Description
 -----------
 
 .. include:: qemu-block-drivers.rst.inc
 
+--------
 See also
 --------
 
diff --git a/docs/system/qemu-cpu-models.rst b/docs/system/qemu-cpu-models.rst
index 8c51e2bf49..5cf6e46f8a 100644
--- a/docs/system/qemu-cpu-models.rst
+++ b/docs/system/qemu-cpu-models.rst
@@ -4,18 +4,21 @@
 QEMU / KVM CPU model configuration
 ==================================
 
+--------
 Synopsis
-''''''''
+--------
 
 QEMU CPU Modelling Infrastructure manual
 
+-----------
 Description
-'''''''''''
+-----------
 
 .. include:: cpu-models-x86.rst.inc
 .. include:: cpu-models-mips.rst.inc
 
+--------
 See also
-''''''''
+--------
 
 The HTML documentation of QEMU for more precise information and Linux user mode emulator invocation.
diff --git a/docs/system/qemu-manpage.rst b/docs/system/qemu-manpage.rst
index d6f44e265b..c47a412758 100644
--- a/docs/system/qemu-manpage.rst
+++ b/docs/system/qemu-manpage.rst
@@ -10,6 +10,7 @@
 QEMU User Documentation
 =======================
 
+--------
 Synopsis
 --------
 
@@ -17,11 +18,13 @@ Synopsis
 
    |qemu_system| [options] [disk_image]
 
+-----------
 Description
 -----------
 
 .. include:: target-i386-desc.rst.inc
 
+-------
 Options
 -------
 
@@ -34,11 +37,13 @@ not need a disk image.
 
 .. include:: mux-chardev.rst.inc
 
+-----
 Notes
 -----
 
 .. include:: device-url-syntax.rst.inc
 
+--------
 See also
 --------
 
-- 
2.31.1