Update Pen.xml (#8208)

Author: BigB9898

xml/System.Drawing/Pen.xml

@@ -266,7 +266,7 @@
           <format type="text/markdown"><![CDATA[
 
 ## Remarks
- The <xref:System.Drawing.Color> property is set to the color specified by the `color` parameter. The <xref:System.Drawing.Pen.Width%2A> property is set to the value specified in the `width` parameter. A `width` of 0 will result in the <xref:System.Drawing.Pen> drawing as if the width were 1.
+ The <xref:System.Drawing.Color> property is set to the color specified by the `color` parameter. The <xref:System.Drawing.Pen.Width%2A> property is set to the value specified in the `width` parameter.  If this value is 0, the width in device units is always 1 pixel&mdash; it is not affected by scale-transform operations that are in effect for the Graphics object that the <xref:System.Drawing.Pen> is used for.