Update README.md

[YevhenZvieriev]

This update adds a detailed section to the README on how to debug Magento 2 cron jobs within a Docker environment using PhpStorm and Xdebug. This information is invaluable for developers who need to troubleshoot and debug scheduled tasks effectively.

• Simplifies Cron Debugging: Step-by-step instructions make it easier to configure and run debugging for Magento 2 cron jobs.

• Improves Developer Experience: With clear guidance, developers can save time and avoid common pitfalls during the debugging process.

• Enhanced Documentation: Having this information in the README provides quick access and ensures all developers working with the repository can easily set up cron debugging.

[what-the-diff]

PR Summary

• Introduction of Debugging Guide for Magento 2 Cron Jobs
  An in-depth guide has been incorporated that provides a sequential procedure to debug Magento 2 Cron jobs effectively.

• Added Illustrations for Configuration Process
  To make the process easier to follow, several images have been included that detail the configuration process for debugging.

• Inclusion of New Debugging Resource Link
  A new reference link "How to debug Magento 2 Cron jobs" has been appended to the existing list. This will allow users to quickly access debugging resources.

• Enhanced Setup Instructions
  Detailed instructions have been incorporated for setting up a new PHP script configuration, establishing the interpreter, managing path mappings, determining breakpoints, and operating the debugger.

[YevhenZvieriev]

Hi everyone, I have an idea to expand the current README documentation to include a detailed section on how to debug individual Magento 2 cron jobs, rather than just the default cron group.

While we currently have instructions on debugging the default cron group (it works only with the default cron group, honestly I don't know the reason), I recently discovered a way to debug individual cron jobs separately.

This approach could provide developers with more precise control during the debugging process, running only one cronjob, not the entire cron group.

Before I proceed with writing the detailed documentation for this, @markshust I wanted to ask if this would be useful. If so, I can include step-by-step instructions on how to configure PhpStorm and Xdebug to target specific cron jobs, which could improve troubleshooting and efficiency.