Update healthkit@Jsu5f6QASpuvpky_W5q-O.md (#6097)

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-# HealthKit
+# HealthKit
+
+HealthKit is a powerful framework that allows developers to create health and fitness applications that can interact seamlessly with the iOS `Health app`.
+
+HealthKit provides a central repository for health and fitness data on iPhone and Apple Watch. With the user’s permission, apps communicate with the HealthKit store to access and share this data.
+
+Visit the following resources to learn more:
+
+- [@official@HealthKit](https://developer.apple.com/documentation/healthkit)
+- [@official@Creating a Mobility Health App](https://developer.apple.com/documentation/healthkit/creating_a_mobility_health_app)
+- [@article@How I use Apple's Health app to track my fitness](https://www.pocket-lint.com/apps/news/apple/131130-apple-healthkit-and-health-app-how-they-work-and-the-medical-records-you-need/)