[css-text-decor-4] Add links

Author: fantasai

css-text-decor-4/Overview.bs

@@ -90,7 +90,7 @@ Line Decoration: Underline, Overline, and Strike-Through</h2>
 	When specified on or propagated to a <a>ruby container</a>,
 	the decorations are propagated only to the <a>ruby base</a>.
 	For all other box types,
-	the decorations are propagated to all in-flow children.
+	the decorations are propagated to all [=in-flow=] children.
 
 	<p class="note">
 		Note that text decorations are not propagated to any out-of-flow descendants,
@@ -103,25 +103,27 @@ Line Decoration: Underline, Overline, and Strike-Through</h2>
 	and are drawn across all text (including white space, letter spacing, and word spacing)
 	except spacing (white space, letter spacing, and word spacing) at the beginning and end of a line.
 	<a>Atomic inlines</a>, such as images and inline blocks, are not decorated.
-	Margins, borders, and padding of the <i>decorating box</i> are always skipped,
+	Margins, borders, and padding of the [=decorating box=] are always skipped,
 	however the margins, border, and padding of descendant <a>inline boxes</a> are not.
 
 	<p class='note'>
 		Note that CSS 2.1 required skipping margins, borders, and padding always.
-		In Level 3 and beyond, by default only the margins, borders, and padding of the <i>decorating box</i> are skipped.
+		In Level 3 and beyond, by default
+		only the margins, borders, and padding of the [=decorating box=]
+		are skipped.
 		In the future CSS2.1 may be updated to match this new default.
 
-	Relatively positioning a descendant moves all text decorations
+	[=Relatively positioning=] a descendant moves all text decorations
 	applied to it along with the descendant's text; it does not affect
 	calculation of the decoration's initial position on that line.
 	The 'visibility' property, 'text-shadow', filters, and other graphical transformations
 	likewise affect text decorations as part of the text they're drawn on,
 	even if the decorations were specified on an ancestor box,
 	and do not affect the calculation of their initial positions or thicknesses.
-	(In the case of line decorations drawn over an atomic inline
-	or across the margins/borders/padding of a non-replaced inline box,
+	(In the case of line decorations drawn over an [=atomic inline=]
+	or across the margins/borders/padding of a [=non-replaced=] [=inline box=],
 	they are analogously associated with the affected atomic inline / non-replaced inline box
-	rather than with the <i>decorating box</i>.)
+	rather than with the [=decorating box=].)
 
 	<div class="example">
 		In the following style sheet and document fragment: