[PATCH] doc/zh_CN: fix title heading markup in admin-guide cpu-load

[Lukas Bulwahn]

Documentation generation warns:

  Documentation/translations/zh_CN/admin-guide/cpu-load.rst:1:
  WARNING: Title overline too short.

Extend title heading markup by one. It was just off by one.

Fixes: e210c66d567c ("doc/zh_CN: add cpu-load Chinese version")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
---
Alex, Tao, please ack.

Jonathan, please pick this quick minor warning fix.

applies on your docs-next and next-20200731

 Documentation/translations/zh_CN/admin-guide/cpu-load.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/translations/zh_CN/admin-guide/cpu-load.rst b/Documentation/translations/zh_CN/admin-guide/cpu-load.rst
index 0116d0477799..c972731c0e57 100644
--- a/Documentation/translations/zh_CN/admin-guide/cpu-load.rst
+++ b/Documentation/translations/zh_CN/admin-guide/cpu-load.rst
@@ -1,6 +1,6 @@
-=======
+========
 CPU èè
-=======
+========
 
 Linuxéè``/proc/stat``å``/proc/uptime``åååçäæïçæçéåå
 åtop(1)äçèääæèçççèèåæäçåçæçååæéã
-- 
2.17.1