Wraps one or more character strings so that render() outputs them
verbatim, without escaping HTML special characters.
Details
This is useful for injecting pre-rendered HTML, inline
<script>/<style> blocks, SVG markup, or any content that should
not be entity-escaped.
Examples
raw_html("<script>alert('hi')</script>")
#> <script>alert('hi')</script>
render(tags$div(raw_html("<em>already formatted</em>")))
#> [1] "<div><em>already formatted</em></div>"