Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

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

Closes #11925

docs/content/en/functions/fmt/Printf.md

@@ -0,0 +1,39 @@
+---
+title: fmt.Printf
+description: Formats a string using the standard `fmt.Sprintf` function.
+categories: []
+keywords: []
+action:
+  aliases: [printf]
+  related:
+    - functions/fmt/Print
+    - functions/fmt/Println
+  returnType: string
+  signatures: ['fmt.Printf FORMAT [INPUT]']
+aliases: [/functions/printf]
+---
+
+{{% include "functions/fmt/_common/fmt-layout.md" %}}
+
+```go-html-template
+{{ $var := "world" }}
+{{ printf "Hello %s." $var }} → Hello world.
+```
+
+```go-html-template
+{{ $pi := 3.14159265 }}
+{{ printf "Pi is approximately %.2f." $pi }} → 3.14
+```
+
+Use the `printf` function with the `safeHTMLAttr` function:
+
+```go-html-template
+{{ $desc := "Eat at Joe's" }}
+<meta name="description" {{ printf "content=%q" $desc | safeHTMLAttr }}>
+```
+
+Hugo renders this to:
+
+```html
+<meta name="description" content="Eat at Joe's">
+```