useTranslation keyPrefix - please bump peerDependency of i18next

[marek-tkaczyk]

I wanted to use a new feature, ability to supply keyPrefix into useTranslation hook.

const { t } = useTranslation('myTranslations', { keyPrefix: 'deeply.nested' })

I couldn't figure out why it didn't want to work,
so I started investigation into merged PRs and found out that I need to upgrade i18next package to at least 20.6 version.

No npm. or yarn informed me about this, because version of i18next as a peerDependency was not bumped up.
So please bump it to save others developers time for searching this.

[jamuhl]

peerDependency wasn't bumped up - because it is only needed for that one specific new feature which is a core feature..not a react-i18next feature

[jamuhl]

will add a note to docs