[css-inline] propose replacement text on raised and sunken caps (commented out for now)

Author: dauwhe

css-inline/Overview.bs

@@ -1030,6 +1030,20 @@ Raised and sunken caps</h4>
 	the effect is created as if the text around the initial letter was pushed down,
 	rather than the letter extending up into previous elements.
 
+<!-- possible replacement text for above to address issue 17, etc
+
+	The margin box of an initial letter contributes to the size 
+	of its containing element. 
+	Initial letters that extend above the first line of text, 
+	known as “raised caps” or “sunken caps,” 
+	do not extend up into previous elements. 
+	Since the content box for an initial letter includes all glyph ink, 
+	this also means that accents or other ink 
+	above the cap height of an initial letter 
+	will not impinge on previous elements.
+
+-->
+
 	<figure>
 		<img src="images/initial-letter-drop-para-compare.png" width="600"
 		     alt="raised cap para after normal para">