diff --git a/CONTRIBUTING-zh.md b/CONTRIBUTING-zh.md
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index 00000000..7a690317
--- /dev/null
+++ b/CONTRIBUTING-zh.md
@@ -0,0 +1,129 @@
+*阅读本文的其他语言版本:[English](CONTRIBUTING.md)。*
+
+
+## 贡献者许可协议
+
+请遵循此[许可协议](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE)参与贡献.
+
+
+## 贡献者行为准则
+
+请同意并遵循此[行为准则](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md)参与贡献.
+
+
+## 概要
+
+1. "轻易可以下载一本书的链接" 通常都不是 *免费* 书籍的链接。 请只提供免费内容。 确信你所提供的书籍是免费的。我们不接受指向*需要*工作电子邮件地址才能获取书籍的页面的链接,但我们欢迎有需求它们的列表。
+2. 如果你不够了解Git:当你发现了一些有趣的东西 *尚未出现在本仓库* 中,请开一个[Issue](https://github.com/EbookFoundation/free-programming-books/issues)主题讨论。
+ * 如果你了解Git,请Fork本仓库并提交PR。
+3. 这里有5种列表,请选择正确的一个:
+
+ * *Books* : PDF、HTML、ePub、基于一个 gitbook.io的站点、一个Git仓库等等。
+ * *Courses* : 课程是一种学习材料,而不是一本书 [This is a course](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-006-introduction-to-algorithms-fall-2011/).
+ * *Interactive Tutorials* : 一个交互式网站,它允许用户输入代码或命令并对结果进行评估。例如:[Try Haskell](http://tryhaskell.org),[Try Github](http://try.github.io).
+ * *Podcasts and Screencasts* : 播客和视频。
+ * *Problem Sets & Competitive Programming* : 一个网站或软件,让你通过解决简单或复杂的问题来评估你的编程技能,有或没有代码审查,有或没有与其他用户对比结果。
+
+4. 确保遵循下面的[基本准则](#guidelines),并遵循本仓库文件的[Markdown规定格式](#formatting)。
+
+5. Travis CI将运行测试,以确保你的列表是 **按字母顺序排列** 的,并 **遵循格式化规则**。请 **确保** 你的更改通过了该测试。
+
+
+### 基本准则
+
+* 确保有你提交的每一本书是免费的。如有需要请做Double-check。如果你在PR中注明为什么你认为这本书是免费的,这将对管理员是很有帮助的。
+* 我们不接受存储在google drive、dropbox、mega、scribd、issuu和其他类似文件上传平台上的文件。
+* 请按照字母顺序插入链接。如果你看到一个错位的链接,请重新对他进行排序并提交一个PR。
+* 使用最权威来源的链接(意思是原作者的网站比编辑的网站好,比第三方网站好)。
+ * 没有文件托管服务(包括(但不限于)Dropbox和谷歌驱动器链接)。
+* 优先选择使用 `https` 链接,而不是 `http` 链接 -- 只要它们位于相同的域并提供相同的内容。
+* 在根域上,去掉末尾的斜杠:使用 `http://example.com` 代替 `http://example.com/`
+* 总是选择最短的链接:使用 `http://example.com/dir/` 比使用 `http://example.com/dir/index.html` 更好。
+ * no URL shortener links
+* 优先选择使用 "current" 链接代替有 "version" 链接:使用 `http://example.com/dir/book/current/` 比使用 `http://example.com/dir/book/v1.0.0/index.html` 更好。
+* 如果一个链接存在过期的证书/自签名证书/SSL问题的任何其他类型:
+ 1. *replace it* :如果可能的话,将其 *替换* 为对应的`http`(因为在移动设备上接受异常可能比较复杂)。
+ 2. *leave it* :如果没有http版本,但仍然可以通过https访问链接,则在浏览器中添加异常或忽略警告。
+ 3. *remove it* :上述以外删除掉它。
+* 如果一个链接以多种格式存在,请添加一个单独的链接,并注明每种格式。
+* 如果一个资源存在于Internet上的不同位置
+ * 使用最权威来源的链接(意思是原始作者的网站比编辑的网站好,比第三方网站好)。
+ * 如果它们链接到不同的版本,你认为这些版本差异很大,值得保留,那么添加一个单独的链接,并对每个版本做一个说明(参见[Issue #2353](https://github.com/EbookFoundation/free-programming-books/issues/2353)有助于格式化问题的讨论)。
+* 相较一个比较大的提交,我们更倾向于原子提交(通过添加/删除/修改进行一次提交)。在提交PR之前没有必要压缩你的提交。(我们永远不会执行这个规则,因为这只是维护人员的方便)
+* 如果一本书比较旧,请在书名中注明出版日期。
+* 包含作者的名字或适当的名字。中文版本可以用 “等” 缩短作者列表。
+* 如果一本书还没有完成,并且仍在编写中,则需添加 “编写中” 符号,参见[下文](#in_process)所述。
+* 如果在开始下载之前需要电子邮件地址或帐户设置,请在括号中添加合适的语言描述,例如:`(email address *requested*, not required)`。
+
+
+### 规定格式
+
+* 所有列表都是`.md`文件。试着学习[Markdown](https://guides.github.com/features/mastering-markdown/)语法。很容易上手!
+* 所有的列表都以索引开始。它的作用是列出并链接所有的部分或子部分。请按照字母顺序排列。
+* Sections(章节/段落)使用3级标题(`###`), subsections(子段落/自章节)使用4级标题 (`####`).
+整体思想为:
+* `2` :新添加的Section与末尾链接间必须留有`2`个空行
+* `1` :标题和第一个链接之间必须留有`1`个空行的空行
+* `0` :任何两个链接之间不能留有任何空行
+* `1` :每个`.md`文件末尾必须留有`1`个空行
+举例:
+
+ [...]
+ * [一本很有用的书](http://example.com/example.html)
+ (空行)
+ (空行)
+ ### Example
+ (空行)
+ * [Another 很有用的书](http://example.com/book.html)
+ * [Other 有用的书](http://example.com/other.html)
+
+* 在 `]` 和 `(` 之间不要留有空格:
+
+```
+错误:* [一本很有用的书] (http://example.com/book.html)
+正确:* [一本很有用的书](http://example.com/book.html)
+```
+
+* 如果包括作者,请使用' - '(由单个空格包围的破折号):
+
+```
+错误:* [一本很有用的书](http://example.com/book.html)- 张显宗
+正确:* [一本很有用的书](http://example.com/book.html) - 张显宗
+```
+
+* 在链接和电子书格式之间放一个空格:
+
+```
+错误:* [一本很有用的书](https://example.org/book.pdf)(PDF)
+正确:* [一本很有用的书](https://example.org/book.pdf) (PDF)
+```
+
+* 作者在电子书格式之前:
+
+```
+错误:* [一本很有用的书](https://example.org/book.pdf)- (PDF) 张显宗
+正确:* [一本很有用的书](https://example.org/book.pdf) - 张显宗 (PDF)
+```
+
+* 多重格式:
+
+```
+错误:* [一本很有用的书](http://example.com/)- 张显宗 (HTML)
+错误:* [一本很有用的书](https://downloads.example.org/book.html)- 张显宗 (download site)
+正确:* [一本很有用的书](http://example.com/) - 张显宗 (HTML) [(PDF, EPUB)](https://downloads.example.org/book.html)
+```
+
+* 在旧书的标题中包括出版年份:
+
+```
+错误:* [一本很有用的书](https://example.org/book.html) - 张显宗 - 1970
+正确:* [一本很有用的书 (1970)](https://example.org/book.html) - 张显宗
+```
+
+
+* 编写(翻译)中的书籍
+
+```
+正确:* [马上出版的一本书](http://example.com/book2.html) - 张显宗 (HTML) (:编著状态: *编写中*)
+正确:* [马上出版的一本书](http://example.com/book2.html) - 张显宗 (HTML) (:编著状态: *翻译中*)
+```
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8d3266c1..dd5680fa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,3 +1,5 @@
+*Read this in other languages: [中文](CONTRIBUTING-zh.md).*
+
## Contributor License Agreement
By contributing you agree to the [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) of this repository.
@@ -6,8 +8,8 @@ By contributing you agree to respect the [Code of Conduct](https://github.com/Eb
## In a nutshell
1. "A link to easily download a book" is not always a link to a *free* book. Please only contribute free content. Make sure it's free. We do not accept links to pages that *require* working email addresses to obtain books, but we welcome listings that request them.
-2. You don't have to know git: if you found something of interest which is *not already in this repo*, please open an issue with your links propositions.
- - If you know git, please fork the repo and send pull requests.
+2. You don't have to know Git: if you found something of interest which is *not already in this repo*, please open an [Issue](https://github.com/EbookFoundation/free-programming-books/issues) with your links propositions.
+ - If you know Git, please Fork the repo and send pull requests.
3. We have 5 kinds of lists. Choose the right one:
- *Books* : PDF, HTML, ePub, a gitbook.io based site, a Git repo, etc.
@@ -16,7 +18,7 @@ By contributing you agree to respect the [Code of Conduct](https://github.com/Eb
- *Podcasts and Screencasts* : Podcasts and screencasts.
- *Problem Sets & Competitive Programming* : A website or software which lets you assess your programming skills by solving simple or complex problems, with or without code review, with or without comparing the results with other users.
-4. Make sure to follow the [guidelines below](#guidelines) and respect the [Markdown formatting](#formatting) of the files
+4. Make sure to follow the [guidelines below](#guidelines) and respect the [Markdown formatting](#formatting) of the files.
5. Travis CI will run tests to make sure your lists are alphabetized and formatting rules are followed. Be sure to check that your changes pass the tests.
@@ -40,7 +42,7 @@ By contributing you agree to respect the [Code of Conduct](https://github.com/Eb
+ use the link with the most authoritative source (meaning author's website is better than editor's website is better than third party website)
+ if they link to different editions and you judge these editions are different enough to be worth keeping them, add a separate link with a note about each edition (see [Issue #2353](https://github.com/EbookFoundation/free-programming-books/issues/2353) to contribute to the discussion on formatting.)
- prefer atomic commits (one commit by addition/deletion/modification) over bigger commits. No need to squash your commits before submitting a PR. (We will never enforce this rule as it's just a matter of convenience for the maintainers)
-- if the book is older, include the publication date with the title.
+- if the book is older, include the publication date with the title.
- include the author name or names where appropriate. You can shorten author lists with "et al."
- if the book is not finished, and is still being worked on, add the "in process" notation, as described [below.](#in_process)
- if an email address or account setup is requested before download is enabled, add language-appropriate notes in parentheses, e.g.: `(email address *requested*, not required)`
@@ -67,21 +69,21 @@ Example:
* [Another Awesome Book](http://example.com/book.html)
* [Some Other Book](http://example.com/other.html)
-- Don't put spaces between `]` and `(`
+- Don't put spaces between `]` and `(`:
```
BAD : * [Another Awesome Book] (http://example.com/book.html)
GOOD: * [Another Awesome Book](http://example.com/book.html)
```
-- If you include the author, use ` - ` (a dash surrounded by single spaces)
+- If you include the author, use ` - ` (a dash surrounded by single spaces):
```
BAD : * [Another Awesome Book](http://example.com/book.html)- John Doe
GOOD: * [Another Awesome Book](http://example.com/book.html) - John Doe
```
-- Put a single space between the link and its format
+- Put a single space between the link and its format:
```
BAD : * [A Very Awesome Book](https://example.org/book.pdf)(PDF)
@@ -91,7 +93,7 @@ GOOD: * [A Very Awesome Book](https://example.org/book.pdf) (PDF)
- Author comes before format:
```
-BAD : * [A Very Awesome Book](https://example.org/book.pdf)- Jane Roe
+BAD : * [A Very Awesome Book](https://example.org/book.pdf)- (PDF) Jane Roe
GOOD: * [A Very Awesome Book](https://example.org/book.pdf) - Jane Roe (PDF)
```
@@ -106,12 +108,12 @@ GOOD: * [Another Awesome Book](http://example.com/) - John Doe (HTML) [(PDF, EPU
- Include publication year in title for older books:
```
-BAD: * [A Very Awesome Book](https://example.org/book.html) - Jane Roe - 1970
+BAD : * [A Very Awesome Book](https://example.org/book.html) - Jane Roe - 1970
GOOD: * [A Very Awesome Book (1970)](https://example.org/book.html) - Jane Roe
```
-- In-process books
+- In-process books:
```
GOOD: * [Will Be Awesome Soon Book](http://example.com/book2.html) - John Doe (HTML) (:construction: *in process*)