[docs] Add related project links (#18035)

docs/src/pages/discover-more/related-projects/related-projects.md

@@ -57,6 +57,14 @@ They support many different use cases (editable, filtering, grouping, sorting, s
 
 - [material-ui-flat-pagination](https://github.com/szmslab/material-ui-flat-pagination): A flat design pagination component for Material-UI.
 
+### Schedulers/Calendars
+
+- [dx-react-scheduler-material-ui](https://devexpress.github.io/devextreme-reactive/react/scheduler/): A scheduler/calendar component for Material-UI with multiple calendar views, editing, recurrence appointments and date navigation features ([paid license](https://js.devexpress.com/licensing/)).
+
+### Charts
+
+- [dx-react-chart-material-ui](https://devexpress.github.io/devextreme-reactive/react/chart/): Charts for Material-UI that visualizes data using a variety of series types, including bar, line, area, scatter, pie, and more ([paid license](https://js.devexpress.com/licensing/)).
+
 ## Theming
 
 - [create-mui-theme](https://react-theming.github.io/create-mui-theme/): An online tool for creating Material-UI themes via Material Design Color Tool.