I wrote a [script](https://github.com/j0lv3r4/dependency-version-updater) to update dependencies recursively in `package.json` files, e.g.:
```
$ node index.js --path="./examples" --dependencies="react=^16.7.0,react-dom=^16.7.0"
```
This PR contains the result against the examples folder.
* emotion v8 + adjustments for breaking changes
* Corrected versioning
* Take hydrate from 'react-emotion'
I was actually wondering that, but haven't seen hydrate in the medium post (even though you pointed out that react-emotion exports all of emotion and I've seen it in source) and didn't want to risk it for the off chance that it *should* be imported directly from emotion for some reason :D
