Potential unwanted placement of method parameter.

In the provided C# code snippet from the **IEnumerable\ Interface documentation**; https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.ienumerable-1?view=net-8.0/#:~:text=1000%29.ToString%28%29%2C%20%22n%22%29

there appears to be a potential issue with the placement of a method parameter in the `string.Format` call within the example code. Specifically, the "n" parameter, which if understood correctly is intended to format the number with the thousand separators, is placed outside the format string, which may lead to improper functioning of the desired intent.

The problematic line in question is as follows:
`string.Format(((memoryAfter - memoryBefore) / 1000).ToString(), "n") + "kb");`

perhaps, to correctly produce the desired output, it should be:
`string.Format("{0:n}kb", (memoryAfter - memoryBefore) / 1000));`
(with an implicit casting of the expression's output into string due to the string.Format method, allowing to avoid the explicit conversion calling the method ToString)