docs(build): add changes concerning minify and html.minify (nuxt#799)

Author: TheAlexLichter

en/api/configuration-build.md

@@ -171,6 +171,36 @@ To understand a bit more about the use of manifest and vendor, take a look at th
 
 See [webpack-hot-middleware](https://github.com/glenjamin/webpack-hot-middleware) for available options.
 
+## html.minify
+
+- Type: `Object`
+- Default:
+
+```js
+{
+  collapseBooleanAttributes: true,
+  collapseWhitespace: false,
+  decodeEntities: true,
+  minifyCSS: true,
+  minifyJS: true,
+  processConditionalComments: true,
+  removeAttributeQuotes: false,
+  removeComments: false,
+  removeEmptyAttributes: true,
+  removeOptionalTags: false,
+  removeRedundantAttributes: true,
+  removeScriptTypeAttributes: false,
+  removeStyleLinkTypeAttributes: false,
+  removeTagWhitespace: false,
+  sortClassName: false,
+  trimCustomFragments: true,
+  useShortDoctype: true
+}
+```
+
+Configuration for the [html-minifier](https://github.com/kangax/html-minifier) plugin used to minify
+HTML files created during the build process (will be applied for *all modes*).
+
 ## loaders
 
 > Customize options of Nuxt.js integrated webpack loaders.

en/api/configuration-generate.md

@@ -34,33 +34,8 @@ Interval between two render cycles to avoid flooding a potential API with API ca
 
 ## minify
 
-- Type: `Object`
-- Default:
-
-```js
-minify: {
-  collapseBooleanAttributes: true,
-  collapseWhitespace: false,
-  decodeEntities: true,
-  minifyCSS: true,
-  minifyJS: true,
-  processConditionalComments: true,
-  removeAttributeQuotes: false,
-  removeComments: false,
-  removeEmptyAttributes: true,
-  removeOptionalTags: false,
-  removeRedundantAttributes: true,
-  removeScriptTypeAttributes: false,
-  removeStyleLinkTypeAttributes: false,
-  removeTagWhitespace: false,
-  sortAttributes: true,
-  sortClassName: false,
-  trimCustomFragments: true,
-  useShortDoctype: true
-}
-```
-
-You can change the default configuration of [html-minifier](https://github.com/kangax/html-minifier) used by Nuxt.js to minify HTML files created during generation.
+- **Deprecated!**
+- Use [build.html.minify](/api/configuration-build#html-minify) instead
 
 ## routes