ContentCardsViewBindingHandler docs update

[chshapiro]

Pull Request/Issue Resolution

Description of Change:

I'm changing..... (could be a link, a new image, a new section, etc.)... because...

Closes #ISSUE_NUMBER_HERE

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

• Yes (Insert Feature Release Date Here)
• No

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[KellieHawks]

@chshapiro Just checking in, do you have an anticipated date you'd like these changes pushed?

[Bucimis]

@KellieHawks please merge!