Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

```
git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash
```

Closes #11925

docs/config/_default/languages.toml

@@ -0,0 +1,4 @@
+[en]
+contentDir = "content/en"
+languageName = "English"
+weight = 1

docs/config/_default/markup.toml

@@ -0,0 +1,40 @@
+defaultMarkdownHandler = "goldmark"
+
+[goldmark.extensions]
+definitionList = true
+footnote = true
+linkify = true
+strikethrough = true
+table = true
+taskList = true
+typographer = true
+
+  [goldmark.extensions.passthrough]
+  enable = true
+
+    [goldmark.extensions.passthrough.delimiters]
+      block = [['\[', '\]'], ['$$', '$$']]
+      inline = [['\(', '\)']]
+
+[goldmark.parser]
+autoHeadingID = true
+autoHeadingIDType = "github"
+
+  [goldmark.parser.attribute]
+  block = true
+  title = true
+
+[goldmark.renderer]
+hardWraps = false
+unsafe = false
+xhtml = false
+
+[highlight]
+style = "trac"
+lineNumbersInTable = true
+noClasses = false
+
+[tableOfContents]
+endLevel = 2
+ordered = false
+startLevel = 2

docs/config/_default/menus/menus.en.toml

@@ -0,0 +1,152 @@
+[[docs]]
+identifier = 'about'
+name = 'About Hugo'
+pageRef = '/about/'
+weight = 10
+
+[[docs]]
+name = 'Installation'
+weight = 20
+identifier = 'installation'
+pageRef = '/installation/'
+
+[[docs]]
+name = 'Getting started'
+weight = 30
+identifier = 'getting-started'
+pageRef = '/getting-started/'
+post = 'break'
+
+[[docs]]
+name = 'Content management'
+weight = 40
+identifier = 'content-management'
+post = 'expanded'
+pageRef = '/content-management/'
+
+[[docs]]
+name = 'Templates'
+weight = 50
+identifier = 'templates'
+pageRef = '/templates/'
+
+[[docs]]
+name = 'Functions'
+weight = 60
+identifier = 'functions'
+pageRef = '/functions/'
+
+[[docs]]
+name = 'Methods'
+weight = 70
+identifier = 'methods'
+pageRef = '/methods/'
+
+[[docs]]
+name = 'Quick reference'
+weight = 80
+identifier = 'quick-reference'
+pageRef = '/quick-reference/'
+
+[[docs]]
+name = 'Variables'
+weight = 85
+identifier = 'variables'
+pageRef = '/variables/'
+
+[[docs]]
+name = 'Hugo Modules'
+weight = 90
+identifier = 'modules'
+pageRef = '/hugo-modules/'
+
+[[docs]]
+name = 'Hugo Pipes'
+weight = 100
+identifier = 'hugo-pipes'
+pageRef = '/hugo-pipes/'
+
+[[docs]]
+name = 'CLI'
+weight = 110
+post = 'break'
+identifier = 'commands'
+pageRef = '/commands/'
+
+# Low level items
+
+[[docs]]
+name = 'Troubleshooting'
+weight = 120
+identifier = 'troubleshooting'
+pageRef = '/troubleshooting/'
+
+[[docs]]
+name = 'Developer tools'
+weight = 130
+identifier = 'developer-tools'
+pageRef = '/tools/'
+
+[[docs]]
+name = 'Hosting and deployment'
+weight = 140
+identifier = 'hosting-and-deployment'
+pageRef = '/hosting-and-deployment/'
+
+[[docs]]
+name = 'Contribute'
+weight = 150
+post = 'break'
+identifier = 'contribute'
+pageRef = '/contribute/'
+
+######## QUICKLINKS
+
+[[quicklinks]]
+identifier = 'fundamentals'
+name = 'Fundamentals'
+pageRef = '/tags/fundamentals/'
+weight = 1
+
+######## GLOBAL ITEMS TO BE SHARED WITH THE HUGO SITES
+
+[[global]]
+name = 'News'
+weight = 1
+identifier = 'news'
+pageRef = '/news/'
+
+[[global]]
+name = 'Docs'
+weight = 5
+identifier = 'docs'
+url = '/documentation/'
+
+[[global]]
+name = 'Themes'
+weight = 10
+identifier = 'themes'
+url = 'https://themes.gohugo.io/'
+
+[[global]]
+name = 'Showcase'
+weight = 20
+identifier = 'showcase'
+pageRef = '/showcase/'
+
+# Anything with a weight > 100 gets an external icon
+
+[[global]]
+name = 'Community'
+weight = 150
+icon = true
+identifier = 'community'
+post = 'external'
+url = 'https://discourse.gohugo.io/'
+
+[[global]]
+name = 'GitHub'
+weight = 200
+identifier = 'github'
+post = 'external'
+url = 'https://github.com/gohugoio/hugo'

docs/config/_default/params.toml

@@ -0,0 +1,28 @@
+description = "The world’s fastest framework for building websites"
+## Setting this to true will add a "noindex" to *EVERY* page on the site.
+removefromexternalsearch = false
+## Gh repo for site footer (include trailing slash)
+ghrepo = "https://github.com/gohugoio/hugoDocs/"
+## GH Repo for filing a new issue
+github_repo = "https://github.com/gohugoio/hugo/issues/new"
+### Edit content repo (set to automatically enter "edit" mode; this is good for "improve this page" links)
+ghdocsrepo = "https://github.com/gohugoio/hugoDocs/tree/master/docs"
+## Discuss Forum URL
+forum = "https://discourse.gohugo.io/"
+## Google Tag Manager
+gtmid = ""
+## Setting this to true will load layouts/partials/math.html on every page on the site.
+math = false
+
+# First one is picked as the Twitter card image if not set on page.
+images = ["images/gohugoio-card.png"]
+
+flex_box_interior_classes = "flex-auto w-100 w-40-l mr3 mb3 bg-white ba b--moon-gray nested-copy-line-height"
+
+#sidebar_direction = "sidebar_left"
+
+[social]
+  twitter = "GoHugoIOv2"
+
+[render_hooks.link]
+  errorLevel = 'warning' # ignore (default), warning, or error (fails the build)

docs/config/_default/security.toml

@@ -0,0 +1,9 @@
+
+  enableInlineShortcodes = false
+
+  [funcs]
+    getenv = ['^HUGO_', '^REPOSITORY_URL$', '^BRANCH$']
+
+  [http]
+    methods = ['(?i)GET|POST']
+    urls = ['.*']