Update README.md

README.md

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   <a href='https://coveralls.io/github/icd2k3/use-react-router-breadcrumbs?branch=master'><img src='https://coveralls.io/repos/github/icd2k3/use-react-router-breadcrumbs/badge.svg?branch=master' alt='Coverage Status' /></a>
 </p>
 
-> **Important**
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 > This package only works with `react-router` 5.1 and up. If you need a (very) similar solution for an earlier version, check out [react-router-breadcrumbs-hoc](https://github.com/icd2k3/react-router-breadcrumbs-hoc)
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