docs: Update readme

README.md

@@ -62,3 +62,54 @@
 ✅ [Why does this repo exist?](https://material-table-core.com/docs/about) 🚧 [Documentation](https://material-table-core.com/docs) ⚙️ [Demos](https://material-table-core.com/demos)
 
 </div>
+
+# Quickstart
+
+## Install material-table-core
+
+### Yarn
+
+`yarn add @material-table/core`
+
+### NPM
+
+`npm install @material-table/core`
+&nbsp;
+\
+&nbsp;
+
+## Change the import
+
+```
+- import MaterialTable from 'material-table';
++ import MaterialTable from '@material-table/core';
+```
+
+## And thats it. Enjoy.
+
+&nbsp;
+\
+&nbsp;
+
+# Material-ui V5
+
+With `material-ui` becoming stable with a beta on July 1st and being promoted as the version to use, we starting to support both version v4 and v5.
+
+If you migrated to version 5 of `material-ui`, simply install our prerelease version to access the new version that supports v5.
+
+### Yarn
+
+`yarn add @material-table/core@next`
+
+### NPM
+
+`npm install @material-table/core@next`
+&nbsp;
+
+### Breaking changes for v5
+
+- `padding` now accepts 'normal' or 'dense'
+- `onChangeRowsPerPage` => `onRowsPerPageChange`
+- `onChangePage` => `onPageChange`
+
+The version is still a work in progress and not fully tested.