$.getScript is missing a signature

jQuery 1.12.0 added a signature for passing an options object to $.getScript.
The options are padded on to $.ajax.

1. The signature should be added to the docs
2. In the Examples section, if you want to enable browser caching it is recommended to add a new function. This is not a good practice, and since 1.12.0 there is no use for it. One can simply:

    $.getScript({
        url: "foo.js",
        cache: true
    })

The above example should be added to the examples section, for jQuery 1.12.0 or later.

https://api.jquery.com/jquery.getscript/

Open the linked jquery.getscript API documentation page and review its signature and Examples section. Update the documentation to cover the options-object signature and the jQuery 1.12.0 caching example; the page should clearly show both the supported signature and the recommended usage when done.