Fix a typo
Add a recommended class structural organization
Fix #142 - reverse advice on instance variable interpolation
Fix #138 - remove some duplicated rules
Fix #137 - use English for identifier names and comments
Update README-zhCN.md

稍作改动以符合简体中文的用词习惯。
Merge pull request #3 from nightire/patch-1

Update README-zhCN.md
Update "Use flat_map instead of map + flatten"

See [Issue:143]
Merge pull request #144 from wteuber/patch-1

Update "Use flat_map instead of map + flatten"
Fix example to be consistent with advice on instance variable interpolation
Merge pull request #146 from janrubio/master

Fix to_s example to be consistent on interpolation
A few additions to the style guide
review feedback
Merge pull request #147 from activebilling/a-few-changes

A few additions to the style guide
Fix #124 - use snake_case for symbols
Emphasize the word dangerous
Conclude the guide on a cheerful node
Added a couple of examples to the Naming section
typo fix.

dup.flatten_once!
update README-zhCN.md: typo fix.

remove <U+200B> character.