Update Type.xml (#9607)

Add the space between sentences in "Remarks" section for the `Type.IsClass` property.

Author: ViIvanov

xml/System/Type.xml

@@ -12570,7 +12570,7 @@ Byref-like structures are declared using `ref struct` keyword in C#. An instance
 > [!NOTE]
 >  This property returns `true` for `Type` instances that represent the <xref:System.Enum> and <xref:System.ValueType> classes. These two classes are the base types for enumerations and value types, respectively, but they are not enumerations or value types themselves. For more information, see the <xref:System.Type.IsValueType%2A> and <xref:System.Type.IsEnum%2A> properties.
 
- The <xref:System.Reflection.TypeAttributes.ClassSemanticsMask?displayProperty=nameWithType> enumeration value  distinguishes a type declaration as class or interface.However, both classes and value types are marked with the <xref:System.Reflection.TypeAttributes.Class?displayProperty=nameWithType> attribute. If you retrieve the value of a type's Attributes property and use the <xref:System.Reflection.TypeAttributes.ClassSemanticsMask?displayProperty=nameWithType> value to determine whether a type is a class instead of a value type, you must also call the <xref:System.Type.IsValueType%2A> property. The example for the <xref:System.Reflection.TypeAttributes> enumeration contains additional information as well as anexample.
+ The <xref:System.Reflection.TypeAttributes.ClassSemanticsMask?displayProperty=nameWithType> enumeration value  distinguishes a type declaration as class or interface. However, both classes and value types are marked with the <xref:System.Reflection.TypeAttributes.Class?displayProperty=nameWithType> attribute. If you retrieve the value of a type's Attributes property and use the <xref:System.Reflection.TypeAttributes.ClassSemanticsMask?displayProperty=nameWithType> value to determine whether a type is a class instead of a value type, you must also call the <xref:System.Type.IsValueType%2A> property. The example for the <xref:System.Reflection.TypeAttributes> enumeration contains additional information as well as anexample.
 
  This property is read-only.