CHANGELOG (#101)
CHANGELOG (#101)

* add CHANGELOG.md

* address feedback

* fix grammar of real time

relayrides/objective-c-sdk,relayrides/objective-c-sdk,optimizely/objective-c-sdk,optimizely/objective-c-sdk,relayrides/objective-c-sdk,relayrides/objective-c-sdk,optimizely/objective-c-sdk,optimizely/objective-c-sdk