Update e2e example commands

I think the syntax changed when we moved from yarn to npm.

Author: code-asher

test/playwright.config.ts

@@ -5,10 +5,10 @@ import path from "path"
 // The default configuration runs all tests in three browsers with workers equal
 // to half the available threads. See 'npm run test:e2e --help' to customize
 // from the command line. For example:
-//   npm run test:e2e --workers 1        # Run with one worker
-//   npm run test:e2e --project Chromium # Only run on Chromium
-//   npm run test:e2e --grep login       # Run tests matching "login"
-//   PWDEBUG=1 npm run test:e2e          # Run Playwright inspector
+//   npm run test:e2e -- --workers 1        # Run with one worker
+//   npm run test:e2e -- --project Chromium # Only run on Chromium
+//   npm run test:e2e -- --grep login       # Run tests matching "login"
+//   PWDEBUG=1 npm run test:e2e             # Run Playwright inspector
 const config: PlaywrightTestConfig = {
   testDir: path.join(__dirname, "e2e"), // Search for tests in this directory.
   timeout: 60000, // Each test is given 60 seconds.