Misleading documentation about how to add the gradle dependency in app/build.gradle

[KaulSalil]

[Enter feedback here] In the official documentation of adding code push regarding the instructions to add entry in build.gradle when we use the default copy action its copies the "apply from: "../../node_modules/react-native/react.gradle"" entry again leading to Cannot add task 'bundleDebugJsAndAssets' as a task with that name already exists. Please correct the documentation

I already see an issue created for this : https://github.com/microsoft/react-native-code-push/issues/1872

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Document Details

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• ID: 3b2c451f-f6df-655c-abaf-60bcf150e478
• Version Independent ID: 9659d8a9-1b8d-a81b-65e9-c04b0ee1abd8
• Content: Get Started with the React Native Client SDK - Visual Studio App Center
• Content Source: docs/distribution/codepush/rn-get-started.md
• Service: vs-appcenter
• Sub-service: app-center-distribute
• GitHub Login: @lucen-ms
• Microsoft Alias: lucen