Update article_template.md

Author: salomegarnier

source/article_template.md

@@ -17,6 +17,8 @@ For help with markdown or HTML formatting, see [this guide](https://www.markdown
 
 After creating a new article, don't forget to add it to the [index.rst](https://github.com/kobotoolbox/docs/blob/master/source/index.rst) file.
 
+<span style="color:#f58a1f">orange</span>
+
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