Alert for untranslated content

[roheclassic]

Porpose

Show standard message for untranslated content.

*It says "🌐 This content is currently available in English only😌"

Steps to make it

1. Add the code for the alert into docs layout template (just before the Title.).

layouts/docs/single.html

		{{ end -}}
		<!-- Add just before .Title (Line18) -->
		{{ if .Params.untranslated -}}
			<div class="alert alert-info d-flex">
			  {{ T "untranslated" }}
			</div>
		{{ end -}}
			<h1>{{ .Title }}</h1>```

*It's also a good idea to add this code to your partials(layouts) as needed.

2. Define untranslated in i18n rules

i18n/xx.toml

[untranslated]
   other = "🌐 このコンテンツは現在、英語版のみ利用可能です😌"

3. Set untranslated to true in the header of the content file for which you want to see that notifications.

content file (index.md)

---
title : "TOPメニューのナビリンクがアクティブになりません。"
description: ""
lead: ""
date: 2020-10-06T08:48:23+00:00
lastmod: 2020-10-06T08:48:23+00:00
draft: false
images: []
untranslated: true                          <-----*
---

## Symptoms

Navi-link on main menu doesn't marked as active item.  

:
:

---

It can also be used for message use cases such as:

"This content has been machine translated from English. If there is any discrepancy in the content, please give priority to the English version.”