restructure docs

Author: yyx990803

docs/SUMMARY.md

@@ -1,16 +1,16 @@
 - Getting Started
   - [Vue Component Spec](start/spec.md)
   - [Basic Tutorial](start/tutorial.md)
+- Features
+  - [ES2015 and Babel](features/es2015.md)
+  - [Scoped CSS](features/scoped-css.md)
+  - [PostCSS and Autoprefixer](features/postcss.md)
+  - [Hot Reload](features/hot-reload.md)
 - Configurations
-  - [Inline Loaders](configurations/inline-loaders.md)
+  - [Pre-Processors](configurations/pre-processors.md)
   - [Asset URL Handling](configurations/asset-url.md)
-  - [ES2015 and Babel](configurations/es2015.md)
-  - [PostCSS and Autoprefixer](configurations/postcss.md)
   - [Advanced Loader Configuration](configurations/advanced.md)
   - [Extracting CSS File](configurations/extract-css.md)
-- Features
-  - [Scoped CSS](features/scoped-css.md)
-  - [Hot Reload](features/hot-reload.md)
 - Workflow
   - [Production Build](workflow/production.md)
   - [Linting](workflow/linting.md)

docs/configurations/inline-loaders.md renamed to docs/configurations/pre-processors.md

@@ -1,6 +1,6 @@
-# Inline Loaders
+# Using Pre-Processors
 
-`vue-loader` allows you to use other Webpack loaders to process a part of a Vue component. It will automatically infer the proper loaders to use from the `lang` attribute of a language block.
+In Webpack, all pre-processors need to be applied with a corresponding loader. `vue-loader` allows you to use other Webpack loaders to process a part of a Vue component. It will automatically infer the proper loaders to use from the `lang` attribute of a language block.
 
 ### CSS
 

docs/configurations/es2015.md renamed to docs/features/es2015.md

@@ -37,7 +37,7 @@ The default Babel options used for scripts inside Vue components are:
 }
 ```
 
-If you want to use custom presets or plugins, for example enable stage-0 language features, install the preset/plugin and then add a `babel` field in your Webpack config:
+If you want to use custom presets or plugins, for example, to enable stage-0 language features, install the preset/plugin and then add a `babel` field in your Webpack config:
 
 ``` bash
 npm install babel-preset-stage-0 --save-dev

docs/configurations/postcss.md renamed to docs/features/postcss.md

@@ -1,6 +1,6 @@
 # PostCSS and Autoprefixer
 
-Any CSS output processed by `vue-loader` is piped through [PostCSS](https://github.com/postcss/postcss) for [scoped CSS](../features/scoped-css.md) rewriting and aut-prefixed by default using [autoprefixer](https://github.com/postcss/autoprefixer).
+Any CSS output processed by `vue-loader` is piped through [PostCSS](https://github.com/postcss/postcss) for scoped CSS rewriting and auto-prefixed by default using [autoprefixer](https://github.com/postcss/autoprefixer).
 
 ### Configuring Autoprefixer