jQuery: Add a self-closed tag back to an example

[flinti]

This adds an actual quick-closed tag in this code example, as it is implied by the text that there can be one:

Tags that cannot contain elements may be quick-closed or not:

$( "<img>" );
$( "<input>" );

to

Tags that cannot contain elements may be quick-closed or not:

$( "<img>" );
$( "<input />" );

[linux-foundation-easycla]

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• ✅ login: flinti / name: Flinti (7e945c5)

[mgol]

Thanks! This was the original intention of this code snippet and the img element was originally auto-closed; this was erroneously changed in 2f54b03.

Maybe let's auto-close img instead of input again? This will be both closer to the past and would follow the order used in the preceding text.

[flinti]

I just changed the PR to close img instead of input

[mgol]

Thanks!