React-SDK - 2.0.0-rc.2

## [2.0.0-rc.2] - April 24th, 2020

### Bug Fixes

- Upgrade `@optimizely/optimizely-sdk` to 4.0.0-rc.2. Allow creating multiple instances from the same datafile object. See [@optimizely/optimizely-sdk Release 4.0.0-rc.2](https://github.com/optimizely/javascript-sdk/releases/tag/v4.0.0-rc.2) for more details.

https://github.com/optimizely/react-sdk/releases/tag/2.0.0-rc.2