Results 4 issues of Andrea

added missing steps in set up, copied from browser-sign-in sample: https://github.com/okta/samples-ios/blob/master/browser-sign-in/README.md

added comma ## PR Checklist Please check if your PR fulfills the following requirements: - [ ] The commit message follows our [guidelines](/okta/okta-sdk-nodejs/blob/master/CONTRIBUTING.md) - [ ] Tests for the changes...

corrected typos ## Description: README erroneously used `oktaSignIn` when it should have continued to use `signIn`

Corrected typo in list of routes