添加了 README 和 UNLICENSE

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

README.md

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-# ph-Bookshelf
+# ph-Bookshelf
+
+一个基于 Gitbook 的简单的多 book 实现。
+
+因为 web 相关的东西 Sukazyo 最熟悉的就是 php 了所以就用 php 写的。
+但是写出来的代码还是十分离谱的不易读的：各种调用交错在一起，前后端也交错在一起
+
+而且也并不好用，不好用到几乎没办法写教程...那种...至少现在如此。
+
+有时间的话会补充的（en
+
+<br/>
+
+### 安装
+
+下载/clone此仓库的内容，然后拖进 php 站点根目录。
+
+对于 Apache（即 .htaccess 支持的 php 环境），可以直接运行。
+
+对于 Nginx 或者别的之类的 php 环境，需要转换一下伪静态配置，以 .htaccess 文件内的内容为依据即可。
+
+<br/>
+
+### 使用
+
+未来可能会拖出来一个示例之类的...
+
+<br/>
+
+### 开源许可
+
+本软件的代码（因为写得真的不好所以）开源于公共领域，<br/>
+（但显然 Gitbook (/assets/gitbook/*) 中的内容还是受限于 Apache 2.0 的）