Correct typo in <Examples> section. (#2558)

It should be No"r"thern.

Author: waynegau

xml/System/StringComparison.xml

@@ -56,7 +56,7 @@
  For more information about comparisons, see the <xref:System.String?displayProperty=nameWithType> class remarks. For more information about culture, see the <xref:System.Globalization.CultureInfo?displayProperty=nameWithType> class remarks. For guidelines on when to use ordinal or culture-sensitive comparison rules or the rules of the invariant culture, see [Best Practices for Using Strings](~/docs/standard/base-types/best-practices-strings.md). For a set of text files that contain information on the character weights used in sorting and comparison operations for Windows operating systems, see [Sorting Weight Tables](https://www.microsoft.com/download/details.aspx?id=10921). For the sort weight table for Linux and macOS, see the [Default Unicode Collation Element Table](https://www.unicode.org/Public/UCA/latest/allkeys.txt).   
   
 ## Examples  
- The following example compares four sets of words by using each member of the <xref:System.StringComparison> enumeration.  The comparisons use the conventions of the English (United States) and Sami, Nothern (Sweden) cultures. Note that the strings "encyclopædia" and "encyclopedia" are considered equivalent in the en-US culture but not in the Sami, Northern (Sweden) culture.  
+ The following example compares four sets of words by using each member of the <xref:System.StringComparison> enumeration.  The comparisons use the conventions of the English (United States) and Sami, Northern (Sweden) cultures. Note that the strings "encyclopædia" and "encyclopedia" are considered equivalent in the en-US culture but not in the Sami, Northern (Sweden) culture.  
   
  [!code-csharp[System.String.Equals#3](~/samples/snippets/csharp/VS_Snippets_CLR_System/system.string.equals/cs/equals_ex3.cs#3)]
  [!code-vb[System.String.Equals#3](~/samples/snippets/visualbasic/VS_Snippets_CLR_System/system.string.equals/vb/equals_ex3.vb#3)]  
@@ -279,4 +279,4 @@
       </Docs>
     </Member>
   </Members>
-</Type>
+</Type>