Adds 0.8.0 release notes.
Adds 0.8.0 release notes.

reactotron/reactotron,rmevans9/reactotron,reactotron/reactotron,infinitered/reactotron,reactotron/reactotron,infinitered/reactotron,rmevans9/reactotron,reactotron/reactotron,reactotron/reactotron,infinitered/reactotron,infinitered/reactotron,rmevans9/reactotron,rmevans9/reactotron,rmevans9/reactotron