Merge commit 'b9bd35d72e14932fb6588ff62b90cddef0a060fc' as 'docs'

docs/content/en/hugo-pipes/introduction.md

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+---
+title: Hugo Pipes Introduction
+description: Hugo Pipes is Hugo's asset processing set of functions.
+date: 2018-07-14
+publishdate: 2018-07-14
+lastmod: 2018-07-14
+categories: [asset management]
+keywords: []
+menu:
+  docs:
+    parent: "pipes"
+    weight: 20
+weight: 01
+sections_weight: 01
+draft: false
+aliases: [/assets/]
+--- 
+
+### Asset directory
+
+Asset files must be stored in the asset directory. This is `/assets` by default, but can be configured via the configuration file's `assetDir` key.
+
+### From file to resource
+
+In order to process an asset with Hugo Pipes, it must be retrieved as a resource using `resources.Get`, which takes one argument: the filepath of the file relative to the asset directory.
+
+```go-html-template
+{{ $style := resources.Get "sass/main.scss" }}
+```
+
+### Asset publishing
+
+Assets will only be published (to `/public`) if `.Permalink` or `.RelPermalink` is used.
+
+### Go Pipes
+
+For improved readability, the Hugo Pipes examples of this documentation will be written using [Go Pipes](/templates/introduction/#pipes):
+```go-html-template
+{{ $style := resources.Get "sass/main.scss" | resources.ToCSS | resources.Minify | resources.Fingerprint }}
+<link rel="stylesheet" href="{{ $style.Permalink }}">
+```
+
+### Method aliases
+
+Each Hugo Pipes `resources` transformation method uses a __camelCased__ alias (`toCSS` for `resources.ToCSS`).
+Non-transformation methods deprived of such aliases are `resources.Get`, `resources.FromString`, `resources.ExecuteAsTemplate` and `resources.Concat`.
+
+The example above can therefore also be written as follows:
+```go-html-template
+{{ $style := resources.Get "sass/main.scss" | toCSS | minify | fingerprint }}
+<link rel="stylesheet" href="{{ $style.Permalink }}">
+```