Update README-cn.md

add drag item

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Merge pull request CymChad#83 from AllenCoder/master

add note and fix a bug

fix CymChad#64

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fix load more bug when loading

fix CymChad#50 bug

Merge remote-tracking branch 'origin1/master'

Merge remote-tracking branch 'origin1/master'

Merge remote-tracking branch 'origin1/master'