📝 Update warning about react-native

[Okazari]

I think the actual warning doesn't make sense anymore since the current versions of react-native support hooks ;) ! However, the warning is still usefull to keep in mind that you need 0.59 or higher :)

[coveralls]

Coverage remained the same at 95.261% when pulling a8c36a9 on Okazari:patch-1 into ab75903 on i18next:master.

[jamuhl]

thank you...good catch...