Revert "initial Readme.md"

This reverts commit 1383f29f0a6e4bc634b2f674508f1d95809d0a7d.
Revert "Revert "initial Readme.md""

This reverts commit de67d44fc720a0cb0ac0b96fe9cd221f6fdcf79e.
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Revert "0224801"

This reverts commit 7d2e8e87cd4c2930e08780eb514bd90d4e2d5fed.
Merge pull request #11 from yatingLi/master

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