Switch to "pnpm" from "yarn"

BUILDING.md

@@ -6,7 +6,7 @@ This project is built with [Vite](https://vitejs.dev/)
 
 In the project directory, you can run:
 
-### `yarn dev`
+### `pnpm dev`
 
 This command runs the app in development mode.\
 Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
@@ -14,11 +14,11 @@ Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
 The page reloads when you make edits.\
 Lint errors also appear in the console.
 
-### `yarn preview`
+### `pnpm preview`
 
 This command runs the app in a local preview production build.
 
-### `yarn build`
+### `pnpm build`
 
 This command creates an optimized production build of the app and places it in the `build` folder.
 See this section about [Building for Production](https://vitejs.dev/guide/build.html) for more information.