Updated Docs on DRY RUN to suggest pairing it with Formatters

[clrudolphi]

Added a sentence to suggest another use of DryRun is to pair it with Formatters to obtain information for downstream analysis.

🤔 What's changed?

dry-run.md documentation page

⚡️ What's your motivation?

🏷️ What kind of change is this?

• 📖 Documentation (improvements without changing code)

📋 Checklist:

• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "[vNext]" section of the CHANGELOG, linking to this pull request & included my GitHub handle to the release contributors list.

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This text was originally taken from the template of the Cucumber project, then edited by hand. You can modify the template here.

[304NotModified]

Thanks!