Better instructions for Swift project

[jscalo]

Maybe I'm wrong but it seems that the framework is Obj-C only, so after importing the AdaptiveCards framework via pod install the user will also need to create a bridging header and add that to their build settings.

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Document Details

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• ID: cf1d3ae5-2446-137e-3684-a5a34413d4a7
• Version Independent ID: c81bd83a-1064-3bb9-ccc1-c1354431f7fd
• Content: iOS SDK - Adaptive Cards
• Content Source: AdaptiveCards/sdk/rendering-cards/ios/getting-started.md
• Product: adaptive-cards
• GitHub Login: @matthidinger
• Microsoft Alias: mahiding