Fix typo in SDK Authentication doc

[motogoozy]

Pull Request/Issue Resolution

Description of Change:

Fixes typo in SDK Authentication doc (changes seconday --> secondary)

Is this change associated with a Braze feature/product release?

• Yes (Insert Feature Release Date Here)
• No

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[motogoozy]

@josh-mccrowell-braze @internetisaiah

[josh-mccrowell-braze]

Thanks for catching this!