Fix example on Composit format string (#49284)

* Fixing examples on Composit format string

The example on (Composite format string)[https://learn.microsoft.com/en-us/dotnet/standard/base-types/composite-formatting#composite-format-string] was reffering to a object called name. However, the String.Format method was using simply a string.

* Update docs/standard/base-types/composite-formatting.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Genevieve Warren <24882762+gewarren@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 3 people

docs/standard/base-types/composite-formatting.md

@@ -42,7 +42,7 @@ Consider the following <xref:System.String.Format%2A> code fragment:
 :::code language="vb" source="./snippets/composite-formatting/net/vb/Program.vb" id="basic":::
 
 <!-- markdownlint-disable-next-line no-space-in-code -->
-The fixed text is `Name = `&nbsp;and `, hours = `. The format items are `{0}`, whose index of 0 corresponds to the object `name`, and `{1:hh}`, whose index of 1 corresponds to the object `DateTime.Now`.
+The fixed text is `Name = `&nbsp;and `, hours = `. The format items are `{0}`, whose index of 0 corresponds to the string literal `"Fred"`, and `{1:hh}`, whose index of 1 corresponds to the value of `DateTime.Now`.
 
 ## Format item syntax