Fix a description error

[cuppar]

Summary

Describe your changes here.

Fixes #Issue_Number (if available)

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docs/csharp/language-reference/keywords/method-parameters.md	Method Parameters

[BillWagner]

Hi @cuppar

I'm closing this, as the current text is correct. I've seen a couple PRs requesting this change, so maybe more explanation is needed.

The statement involves the = ref operator. Here's an example in sharplab

If you ref assign a variable, you're changing what it refers to. That's not visible outside of the method.

It is probably worth adding an example to this page, or linking to the operator page for = ref.

[cuppar]

Oh, I must have misunderstood. I just started learning C#, and I thought the description here refers to a new value type, for example: sharplab