init dnisysklog then add readme

Signed-off-by: Xiamen WlanBB team <jianzhong.hu@dniserver.dnish.net>

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
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# Committer: Xiamen WlanBB team <jianzhong.hu@dniserver.dnish.net>
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# On branch master
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# Initial commit
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# Changes to be committed:
#	new file:   README
#
