Update EditorConfig.

.editorconfig

@@ -1,30 +1,65 @@
-# EditorConfig is awesome: http://EditorConfig.org
+# http://EditorConfig.org
+#
+# Julien Fontanet's configuration
+# https://gist.github.com/julien-f/8096213
 
-# top-most EditorConfig file
+# Top-most EditorConfig file.
 root = true
 
-# Unix-style newlines with a newline ending every file
-#
-# Tab indentation (size of 4 spaces)
+# Common config.
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 2
-indent_style = tab
 insert_final_newline = true
 trim_trailing_whitespaces = true
 
-# YAML only allows spaces.
-[*.yaml]
+# CoffeeScript
+#
+# https://github.com/polarmobile/coffeescript-style-guide/blob/master/README.md
+[*.{,lit}coffee]
 indent_size = 2
 indent_style = space
 
-# Special settings for NPM file.
+# Markdown
+[*.{md,mdwn,mdown,markdown}]
+indent_size = 4
+indent_style = space
+
+# Package.json
+#
+# This indentation style is the one used by npm.
 [/package.json]
 indent_size = 2
 indent_style = space
 
-# For CoffeeScript files, we follow this Polarmobile style guide (https://github.com/polarmobile/coffeescript-style-guide/blob/master/README.md).
-[*{,.spec}.{,lit}coffee]
+# Jade
+[*.jade]
+indent_size = 2
+indent_style = space
+
+# JavaScript
+#
+# Two spaces seems to be the standard most common style, at least in
+# Node.js (http://nodeguide.com/style.html#tabs-vs-spaces).
+[*.js]
+indent_size = 2
+indent_style = space
+
+# Less
+[*.less]
+indent_size = 2
+indent_style = space
+
+# Sass
+#
+# Style used for http://libsass.com
+[*.s[ac]ss]
+indent_size = 2
+indent_style = space
+
+# YAML
+#
+# Only spaces are allowed.
+[*.yaml]
 indent_size = 2
 indent_style = space