Document the transform.Remarshal template function

content/en/functions/transform.Remarshal.md

@@ -0,0 +1,88 @@
+---
+title: transform.Remarshal
+description: Marshals a string of serialized data, or a map, into a string of serialized data in the specified format.
+categories: [functions]
+menu:
+  docs:
+    parent: functions
+keywords: []
+signature: [ transform.Remarshal FORMAT INPUT ]
+---
+
+The FORMAT must be one of `json`, `toml`, `yaml`, or `xml`. If the INPUT is a string of serialized data, it must be valid JSON, TOML, YAML, or XML.
+
+{{% note %}}
+This function is primarily a helper for Hugo's documentation, used to convert configuration and front matter examples to JSON, TOML, and YAML.
+
+This is not a general purpose converter, and may change without notice if required for Hugo's documentation site.
+{{% /note %}}
+
+Example 1
+: Convert a string of TOML to JSON.
+
+```go-html-template
+{{ $s := `
+  baseURL = 'https://example.org/'
+  languageCode = 'en-US'
+  title = 'ABC Widgets'
+`}}
+<pre>{{ transform.Remarshal "json" $s }}</pre>
+```
+
+Resulting HTML:
+
+```html
+<pre>{
+   &#34;baseURL&#34;: &#34;https://example.org/&#34;,
+   &#34;languageCode&#34;: &#34;en-US&#34;,
+   &#34;title&#34;: &#34;ABC Widgets&#34;
+}
+</pre>
+```
+
+Rendered in browser:
+
+```text
+{
+   "baseURL": "https://example.org/",
+   "languageCode": "en-US",
+   "title": "ABC Widgets"
+}
+```
+
+Example 2
+: Convert a map to YAML.
+
+```go-html-template
+{{ $m := dict
+  "a" "Hugo rocks!"
+  "b" (dict "question" "What is 6x7?" "answer" 42)
+  "c" (slice "foo" "bar")
+}}
+<pre>{{ transform.Remarshal "yaml" $m }}</pre>
+```
+
+Resulting HTML:
+
+```html
+<pre>a: Hugo rocks!
+b:
+  answer: 42
+  question: What is 6x7?
+c:
+- foo
+- bar
+</pre>
+```
+
+Rendered in browser:
+
+```text
+a: Hugo rocks!
+b:
+  answer: 42
+  question: What is 6x7?
+c:
+- foo
+- bar
+```