Improve README

[ohitsdaniel]

Problem

We do not explain why developers should use ComposableNavigator over vanilla SwiftUI + ObservableObjects.

Also, the contact email in the CoC is my work email.

Solution

• Add a couple of paragraphs on Vanilla SwiftUI, its problems and how CN solves them.

• Replaced the contact email with a team email.

• Placeholder logo until Valentin does his magic.

[github-actions[bot]]

Current coverage for ComposableDeeplinking.framework is 61.82%

Files changed	-	-
Deeplink.swift	0.00%	:skull:

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Current coverage for ComposableNavigator.framework is 16.08%

✅ No files affecting coverage found

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Current coverage for ComposableNavigatorTCA.framework is 0.00%

✅ No files affecting coverage found

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