fix: update BrowserStack usage instructions in constants.ts

Author: tech-sushant

src/tools/sdk-utils/constants.ts

@@ -330,6 +330,12 @@ Add new scripts to package.json for running tests on BrowserStack:
 }
 \`\`\`
 
+Example : 
+\`\`\`json
+"scripts": {
+  "test:browserstack": "npx browserstack-node-sdk playwright test"
+}
+\`\`\`
 ---STEP---
 
 Export BrowserStack credentials as environment variables:
@@ -338,6 +344,10 @@ Set the following environment variables before running tests.
 export BROWSERSTACK_USERNAME=${username}
 export BROWSERSTACK_ACCESS_KEY=${accessKey}
 \`\`\`
+
+---STEP---
+Run your tests:
+You can now run your tests on BrowserStack using your standard command or Use the commands defined in your package.json file to run the tests.
 `;
 
 /**