chore: update preview builds message

scripts/generate-preview-build-message.ts

@@ -42,6 +42,13 @@ ${JSON.stringify(packageMap, null, 2)}
 \`\`\`
 
 </details>
+
+You can also use this helper script to automatically setup `"resolutions"` into your project. You
+will need to create a file (`previews.json` here) and copy the JSON content from above.
+
+\`\`\`console
+$ ./scripts/use-preview-builds.ts <project-path> previews.json
+\`\`\`
 `;
 
   const messagePath = path.resolve(__dirname, '../preview-build-message.txt');