docs(readme): fix quickstart command (#351)

Co-authored-by: Ale <[email protected]>

README.md

@@ -130,7 +130,7 @@ Finally, import the stylesheet in the root `layout.tsx` file:
 Use the following commands to quickly create a new Vite project with Pigment CSS set up:
 
 ```bash
-curl https://codeload.github.com/mui/pigment-css/tar.gz/master | tar -xz --strip=2 pigment-css/examples/pigment-css-vite-ts
+curl https://codeload.github.com/mui/pigment-css/tar.gz/master | tar -xz --strip=2 pigment-css-master/examples/pigment-css-vite-ts
 cd pigment-css-vite-ts
 ```