Specifically mention Scenario Outline descriptions can use parameters

[chabala]

🤔 What's changed?

• Specifically mention Scenario Outline descriptions can use parameters.

⚡️ What's your motivation?

I was unsure this was possible until I tried it out myself. Seems like useful information to call out. Makes each run of the outline have a unique name - including the value of the variable for that run - rather than multiple runs with the same exact name suffixed by a number.

📋 Checklist:

• [x] I agree to respect and uphold the Cucumber Community Code of Conduct