docs: zh_CN: page_frags.rst: fix a broken reference

typo:
	page_frag.rst -> page_frags.rst

Fixes: f51debc256 ("docs/zh_CN: add vm page_frags translation")
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Yanteng Si<siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/a12e18044ddb2ca16a1fed10823d59558d6de405.1656234456.git.mchehab@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2022-06-26 10:10:49 +01:00 • committed by Jonathan Corbet
commit 5fe84fe446