Update xml/System.Globalization/CompareOptions.xml

Author: gewarren

xml/System.Globalization/CompareOptions.xml

@@ -77,8 +77,6 @@
     <remarks>
       <format type="text/markdown"><![CDATA[
 
-# Remarks
-
 In .NET 5 and later, the cross-platform ICU (International Components for Unicode) library is used for string processing. The ICU library brings the following changes to string comparison behavior:
 
 - The default option `None` is now equivalent to the `StringSort` option. The previous functionality of `None`, where equal weighting was given to alphanumeric and nonalphanumeric characters, is no longer available.