Code Review 2 by Liyi Cao

[caoliyi]

1. I tried to use the link that you gave in the README document, but did not succeed. Hope you guys can fix this problem.

2. You add a few new documents, but there is no description of some of the details (some documents are your name), which made the reader a little bit difficult.

[x2mercy]

1. If you fail to open the link, it is because we shut down the server temporarily. In this case, you could contact us for accessing.
2. Thank you for your advice, we will improve our organization