Replaces shorter examples with more sensible/representative/inforrmative text. For longer passages, resorted to using SFW extracts from http://katyperryipsum.com/
* Rename Navs to Navs and Tabs
Fixes#31378
* Add title to renamed file
* Update navs-tabs.md
* Add alias/redirect
* Fix references to renamed file, tweak title
Co-authored-by: Patrick H. Lauke <redux@splintered.co.uk>
Remove the `markdownify` call, and instead rely on Hugo's proper syntax; `{{% callout %}}` when we want to the content to be processed as Markdown.
This allows for stuff like:
{{% callout info %}}
##### I'm an info callout!
```css
.foo {
color: #fff;
}
```
{{< example >}}
<div class="alert alert-warning alert-dismissible fade show" role="alert">
<strong>Holy guacamole!</strong> You should check in on some of those fields below.
<button type="button" class="btn-close" data-dismiss="alert" aria-label="Close"></button>
</div>
{{< /example >}}
{{% /callout %}}
