Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

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

Closes #11925

docs/content/en/functions/collections/Querify.md

@@ -0,0 +1,32 @@
+---
+title: collections.Querify
+description: Takes a set or slice of key-value pairs and returns a query string to be appended to URLs.
+categories: []
+keywords: []
+action:
+  aliases: [querify]
+  related:
+    - functions/go-template/urlquery.md
+  returnType: string
+  signatures:
+    - collections.Querify VALUE [VALUE...]
+    - collections.Querify COLLECTION
+aliases: [/functions/querify]
+---
+
+`querify` takes a set or slice of key-value pairs and returns a [query string](https://en.wikipedia.org/wiki/Query_string) that can be appended to a URL.
+
+The following examples create a link to a search results page on Google.
+
+```go-html-template
+<a href="https://www.google.com?{{ (querify "q" "test" "page" 3) | safeURL }}">Search</a>
+
+{{ $qs := slice "q" "test" "page" 3 }}
+<a href="https://www.google.com?{{ (querify $qs) | safeURL }}">Search</a>
+```
+
+Both of these examples render the following HTML:
+
+```html
+<a href="https://www.google.com?page=3&q=test">Search</a>
+```