Added 3 JS and 1 CSS

Found a lot of these useful so added some of my own I had come up with.
完善简体中文版

- 修正了少量拼写和格式错误
- 修正了关于 `ship` 的误读
- 补充了一些基于西方文化的问题的解释
Fix typo and more natural Japanese
added toc and anchors
Merge pull request #68 from demoive/patch-1

Added 3 JS and 1 CSS
Merge pull request #77 from very-geek/master

Improved Simplified Chinese Edition
Merge pull request #78 from toshimaru/japanese

Fix typo and more natural Japanese
Merge pull request #80 from dunckr/toc-and-anchors

Added Table of Contents and Anchors
Merge pull request #3 from darcyclarke/master

Update from master