fix: typo

Signed-off-by: Luca Ban <[email protected]>

Author: mesqueeb

docs/data/material/getting-started/templates/dashboard/README.md

@@ -6,7 +6,7 @@
 
 1. Copy these folders (`dashboard` and `shared-theme`) into your project, or one of the [example projects](https://github.com/mui/material-ui/tree/master/examples).
 2. Make sure your project has the required dependencies: @mui/material, @mui/icons-material, @emotion/styled, @emotion/react, @mui/x-charts, @mui/x-date-pickers, @mui/x-data-grid, @mui/x-tree-view, dayjs
-4. Import and use the `Dashboard` component.
+3. Import and use the `Dashboard` component.
 
 ## Demo