example code in README is out of date

Created a patch for the issue mentioned, please review.
Thank You.

Manoj Raj.R → made their first commit to this issue’s fork.

Updated with formatting from the Readme Template and opened the MR.
https://www.drupal.org/docs/develop/managing-a-drupalorg-theme-module-or... →

Please review.

sahil.goyal → made their first commit to this issue’s fork.

Thanx @Manoj Raj.R for formatting the readme file, but it is not target the actual issue mentioned to i made a Commit on Same MR to update the example code, and the #3 not looks correct as we have following different parameters as described.

Yep,
I made the code formatting since it can be in one issue fixed with this combined.

Thanks