init project

docs/data/joy/components/linear-progress/LinearProgressSizes.js

@@ -0,0 +1,12 @@
+import Stack from '@mui/joy/Stack';
+import LinearProgress from '@mui/joy/LinearProgress';
+
+export default function LinearProgressSizes() {
+  return (
+    <Stack spacing={2} sx={{ flex: 1 }}>
+      <LinearProgress size="sm" />
+      <LinearProgress size="md" />
+      <LinearProgress size="lg" />
+    </Stack>
+  );
+}