Fixed a small typo

Author: jaredpar

src/Microsoft.DotNet.CodeFormatting.Tests/Rules/NonAsciiCharactersAreEscapedInLiteralsRuleTests.cs

@@ -5,7 +5,7 @@
 
 namespace Microsoft.DotNet.CodeFormatting.Tests
 {
-    public class NonAsciiChractersAreEscapedInLiteralsTests : CodeFormattingTestBase
+    public class NonAsciiCharactersAreEscapedInLiteralsTests : CodeFormattingTestBase
     {
         [Fact]
         public void CanUseNonAsciiCharactersInComments()
@@ -65,7 +65,7 @@ class Test
 
         internal override IFormattingRule GetFormattingRule()
         {
-            return new Rules.NonAsciiChractersAreEscapedInLiterals();
+            return new Rules.NonAsciiCharactersAreEscapedInLiterals();
         }
     }
 }

src/Microsoft.DotNet.CodeFormatting/Rules/NonAsciiCharactersAreEscapedInLiteralsRule.cs

@@ -16,7 +16,7 @@
 namespace Microsoft.DotNet.CodeFormatting.Rules
 {
     [RuleOrder(RuleOrder.NonAsciiChractersAreEscapedInLiterals)]
-    internal sealed class NonAsciiChractersAreEscapedInLiterals : IFormattingRule
+    internal sealed class NonAsciiCharactersAreEscapedInLiterals : IFormattingRule
     {
         public async Task<Document> ProcessAsync(Document document, CancellationToken cancellationToken)
         {