Editing Step 2 for Get an Import credential ID

[jmadsen362]

Editing this step per Joe Damiani's ask in Ads UA General, also taking out pink note per Joe's request.

[opbld33]

Docs Build status updates of commit cdecb9a:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
Advertising/bingads-13/guides/google-ads-import.md	:white_check_mark:Succeeded	View (=bingads-13)

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