typo "EncodeToUtf8" > "TryEncodeToUtf8" (dotnet#8685)

Author: ctstacey

xml/System.Text/Rune.xml

@@ -243,7 +243,7 @@ The following example converts a `Rune` instance to a `UTF-8` byte array:
 
 :::code language="csharp" source="~/snippets/csharp/System.Text/Rune/Overview/EncodeRune.cs" id="SnippetUtf8ByteArray":::
 
-The <xref:System.Text.Rune.EncodeToUtf16%2A?displayProperty=nameWithType> and <xref:System.Text.Rune.EncodeToUtf8%2A?displayProperty=nameWithType> methods return the actual number of elements written. They throw an exception if the destination buffer is too short to contain the result. There are non-throwing <xref:System.Text.Rune.TryEncodeToUtf8%2A> and <xref:System.Text.Rune.EncodeToUtf16%2A> methods as well for callers who want to avoid exceptions.
+The <xref:System.Text.Rune.EncodeToUtf16%2A?displayProperty=nameWithType> and <xref:System.Text.Rune.EncodeToUtf8%2A?displayProperty=nameWithType> methods return the actual number of elements written. They throw an exception if the destination buffer is too short to contain the result. There are non-throwing <xref:System.Text.Rune.TryEncodeToUtf8%2A> and <xref:System.Text.Rune.TryEncodeToUtf16%2A> methods as well for callers who want to avoid exceptions.
 
 ### Rune in .NET vs. other languages