@types/webdriverio missing in your package.json (#270)
@types/webdriverio missing in your package.json (#270)

* fixed a missing webdriverio types missing

* undo extraneous whitespace changes

* sync webdriverio version requirements

For `webdriverio` and `@types/webdriverio`, use the same version requirement string (`^4.8.0`)

electron/spectron,electron/spectron