message: Update readme to include new links and branches
diff: @@ -10,7 +10,7 @@ Accessible, customizable, delightful date & time pickers for [@material-ui/core]
  [![npm package](https://img.shields.io/npm/v/@material-ui/pickers.svg)](https://www.npmjs.org/package/@material-ui/pickers)
  [![npm download](https://img.shields.io/npm/dm/@material-ui/pickers.svg)](https://www.npmjs.org/package/@material-ui/pickers)
  -[![codecov](https://codecov.io/gh/mui-org/material-ui-pickers/branch/develop/graph/badge.svg)](https://codecov.io/gh/mui-org/material-ui-pickers)
  +[![codecov](https://codecov.io/gh/mui-org/material-ui-pickers/branch/next/graph/badge.svg)](https://codecov.io/gh/mui-org/material-ui-pickers)
  [![Bundle Size](https://badgen.net/bundlephobia/minzip/@material-ui/pickers)](https://bundlephobia.com/result?p=@material-ui/pickers@3.0.0-beta.1)
  [![CircleCI](https://circleci.com/gh/mui-org/material-ui-pickers.svg?style=svg)](https://circleci.com/gh/mui-org/material-ui-pickers)
  [![Cypress.io tests](https://img.shields.io/badge/cypress.io-tests-green.svg?style=flat-square)](https://dashboard.cypress.io/#/projects/qow28y/runs)
  @@ -20,7 +20,7 @@ Accessible, customizable, delightful date & time pickers for [@material-ui/core]
  ### Installation
  -Please read the [migration guide](https://next.material-ui-pickers.dev/guides/upgrading-to-v3) if you are updating from v2
  +Please read the [migration guide](https://material-ui-pickers.dev/guides/upgrading-to-v3) if you are updating from v2
  ```sh
  // via npm
  