updated library information in README

providerx · Mar 28, 2021 · ad5496b · ad5496b
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 A React state management library built on top of RxJS and Observables
 
 ## Usage:
+The library will cache data within your ObservableProvider, so you can grab values from a provider with the `useProvider`
+hook - without re-fetching data.
 ```tsx
 import React from 'react'
 import { useProvider, ObservableProvider, refresh } from 'react-providerx'