[Content]: Missing information on Swift Package Manager support

[jfrodden]

What article on segment.com/docs is affected?

https://segment.com/docs/connections/sources/catalog/libraries/mobile/ios/quickstart/

What part(s) of the article would you like to see updated?

The article promotes CocoaPods as preferred method of import and does not mention your Swift Package Manager support.

Additional information

No response

[stayseesong]

@jfrodden Thanks for submitting this issue! I created a PR to address the fix here if you'd like to take a look and see if this fixes the issue.