{{!
    @template core/help_icon

    Help icon.

    Example context (json):
    {
        "title": "Help with something",
        "url": "http://example.org/help",
        "linktext": "",
        "icon":{
            "attributes": [
                {"name": "class", "value": ""},
                {"name": "src", "value": "../../../pix/help.svg"},
                {"name": "alt", "value": "Help icon"}
            ]
        }
    }
}}
<a class="btn btn-link p-0" role="button"
    data-container="body" data-toggle="popover"
    data-placement="{{#ltr}}right{{/ltr}}{{^ltr}}left{{/ltr}}" data-content="{{text}} {{completedoclink}}"
    data-html="true" tabindex="0" data-trigger="focus" aria-label="{{#str}} help {{/str}}">
  {{#pix}}help, core, {{{alt}}}{{/pix}}
</a>