Fix errors #3 + additional sentence

Author: steveharter

Diff for: xml/System.Reflection/FieldInfo.xml

@@ -667,14 +667,16 @@
 ## Remarks  
  A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to to obtain custom modifiers from a function pointer.
 
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+
  This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
   
  ]]></format>
         </remarks>        
-        <altmember cref="M:System.FieldInfo.GetOptionalCustomModifiers()" />
-        <altmember cref="M:System.FieldInfo.GetRequiredCustomModifiers()" />
-        <altmember cref="M:System.PropertyInfo.GetModifiedPropertyType()" />
-        <altmember cref="M:System.ParameterInfo.GetModifiedParameterType()" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">

Diff for: xml/System.Reflection/ParameterInfo.xml

@@ -733,14 +733,16 @@
 ## Remarks  
  A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to to obtain custom modifiers from a function pointer.
 
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+
  This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
   
  ]]></format>
         </remarks>        
-        <altmember cref="M:System.ParameterInfo.GetOptionalCustomModifiers()" />
-        <altmember cref="M:System.ParameterInfo.GetRequiredCustomModifiers()" />
-        <altmember cref="M:System.FieldInfo.GetModifiedFieldType()" />
-        <altmember cref="M:System.PropertyInfo.GetModifiedPropertyType()" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">

Diff for: xml/System.Reflection/PropertyInfo.xml

@@ -996,14 +996,16 @@
 ## Remarks  
  A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to to obtain custom modifiers from a function pointer.
 
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+ 
  This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
   
  ]]></format>
         </remarks>        
-        <altmember cref="M:System.PropertyInfo.GetOptionalCustomModifiers()" />
-        <altmember cref="M:System.PropertyInfo.GetRequiredCustomModifiers()" />
-        <altmember cref="M:System.FieldInfo.GetModifiedFieldType()" />
-        <altmember cref="M:System.ParameterInfo.GetModifiedParameterType()" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">

Diff for: xml/System/Type.xml

@@ -4218,7 +4218,7 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetFields%2A> method does
 
  -or-  
 
- An empty array of type <see cref="T:System.Type" />, if the current function pointer <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType()" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType()" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType()" />
+ An empty array of type <see cref="T:System.Type" />, if the current function pointer <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
         </returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -7666,7 +7666,7 @@ If the current <xref:System.Type> represents a type parameter in the definition
 
  -or-  
 
- An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType()" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType()" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType()" />
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType()" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType()" />
         </returns>
     <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -8950,7 +8950,7 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetProperties%2A> method d
 
  -or-  
 
- An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType()" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType()" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType()" />
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
         </returns>
     <remarks>
           <format type="text/markdown"><![CDATA[