Update README

Author: shingt

README.md

@@ -9,10 +9,11 @@ An simple iOS example app of GitHub GraphQL API using Apollo.
 
 ## Requirements
 
-- Swift 5.2
 - Xcode 11.5
+- Swift 5.2
 
 ## How to start
 
-- You need to [register for the GitHub pre-release program](https://github.com/prerelease/agreement), get your OAuth token with repo scope and set it to `RepositoriesViewController`.
+- Open `GitHub-GraphQL-API-Example-iOS.xcodeproj`
+- Replace `YOUR_TOKEN` in `RepositoriesViewController` with your private access token on GitHub and build!