Merge pull request #660 from nikoqw/master

添加英文說明

README.md

@@ -1,6 +1,7 @@
 ## Dress - 面向可爱的蓝孩子 (/ω＼) 的 git 学习实践项目 on GitHub
 
 ### Dress - A Study and Practice project of git.
+# ***If you are feeling puzzled and werid about the project, please read [README DETAIL](README_DETAIL.md)***
 
 [![Contributors](https://img.shields.io/github/contributors/komeiji-satori/Dress.svg)](https://github.com/komeiji-satori/Dress/graphs/contributors)
 [![Build Status](https://www.travis-ci.org/komeiji-satori/Dress.svg?branch=master)](https://www.travis-ci.org/komeiji-satori/Dress)

README_DETAIL.md

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+WHY????
+--------------
+Simply put: We want to encourage more people to learn and understand, to know the ideology of github.  
+Of course, them are quasi-programmer and non-programmer but who need multi-person collaborative production project.
+So that caused the pointer of this project: ***Let them practice using github without contribution of code***.
+
+Will this project take up a lot of GitHub resources?
+---------------
+No.  
+Github has its limit: the size of repo cannot exceed 1024MB.
+The contributor are asked to compress pictures. If the picture is not up to standard,
+or the size of the picture is larger than 1MB, the pull request will be closed. This is also a github-workflow training for them.
+In future, We might regularly delete past documents (and their record) to ensure the size of the repo.
+
+Is this project really helpful?
+---------------
+I think, yes.  
+This project can (and already) aroused a lot of interest to use github and teached a lot of people 
+"the ideology and the workflow of github and how to simply use github" in an easy-to-understand way.  
+This project also develop their team cooperation ability: join the discussion and solve problem such as 
+how to ctrl the size of repo, maintenance the repo, and so on.
+
+How to join you?
+---------------
+Please read README.md.