Update react-apollo.md

[papaponmx]

I'm using v2.2.4 and the implemantation changed the other way around. I proposed this changes in order to update the documentation accordingly.

Checklist:

• If this PR is a new feature, please reference an issue where a consensus about the design was reached (not necessary for small changes)
• Make sure all of the significant new logic is covered by tests

[apollo-cla]

@papaponmx: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Meteor Contributor Agreement here: https://contribute.meteor.com/

[papaponmx]

Hey guys, I dig deeper into the problem. I'll update this PR in the weekend.

[benjamn]

Thanks @papaponmx!