Fix codesnippet syntax (#4011)

yishengjin1413 · web-flow · commit 61e5f204536e · 2020-03-20T08:13:02.000-04:00
diff --git a/snippets/System.Text/Rune/csharp/TrimNonLettersAndNonDigits.cs b/snippets/System.Text/Rune/csharp/TrimNonLettersAndNonDigits.cs
@@ -44,7 +44,7 @@ static ReadOnlySpan<char> TrimNonLettersAndNonDigits(ReadOnlySpan<char> span)
 
                 return span;
             }
-            // <SnippetExample>
+            // </SnippetExample>
         }
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -44,7 +44,7 @@ static ReadOnlySpan<char> TrimNonLettersAndNonDigits(ReadOnlySpan<char> span)`
`44`	`44`
`45`	`45`	`return span;`
`46`	`46`	`}`
`47`		`- // <SnippetExample>`
	`47`	`+ // </SnippetExample>`
`48`	`48`	`}`
`49`	`49`	`}`
`50`	`50`	`}`