[css-rhythm-1] Publication fixes

Author: fantasai

css-rhythm-1/Overview.bs

@@ -1,8 +1,8 @@
 <style>
 .example .figure img {
-  background-color: white;
-  padding: 20px;
-  margin: 20px;
+	background-color: white;
+	padding: 20px;
+	margin: 20px;
 }
 </style>
 <pre class=metadata>
@@ -17,7 +17,7 @@ Editor: Elika J. Etemad / fantasai, Apple, http://fantasai.inkedblade.net/contac
 ED: https://drafts.csswg.org/css-rhythm/
 TR: https://www.w3.org/TR/css-rhythm-1/
 Abstract: This module contains CSS features for aligning content size
-  to multiple of unit size.
+	to multiple of unit size.
 </pre>
 <pre class=link-defaults>
 spec:css2; type:property; text:max-height
@@ -26,6 +26,7 @@ spec:css2; type:property; text:min-width
 spec:css-writing-modes-4; type:dfn; text:end
 spec:css-writing-modes-4; type:dfn; text:start
 spec:css-break-3; type:dfn; text:fragment
+spec:css-box-4; type:dfn; text:content area
 </pre>
 
 Introduction {#intro}
@@ -278,7 +279,7 @@ Specifying Alignment: the 'block-step-align' property {#block-step-align}
 	<dl dfn-for="block-step-align" dfn-type="value">
 		<dt><dfn>auto</dfn>
 		<dd>
-			If 'block-step-insert' is ''margin-box'':
+			If 'block-step-insert' is ''block-step-insert/margin-box'':
 			if 'align-self' is ''start'', ''end'', or ''center'', treat as that value,
 			otherwise treat as ''center''.
 
@@ -302,7 +303,7 @@ Specifying Alignment: the 'block-step-align' property {#block-step-align}
 	additional spacing cannot be added to margins
 	that are truncated or omitted due to unforced fragmentation breaks
 	(see [[CSS3-PAGE]] and [[CSS-BREAK-3]]);
-	therefore if 'block-step-insert' is ''margin-box'',
+	therefore if 'block-step-insert' is ''block-step-insert/margin-box'',
 	all extra space derived from applying 'block-step-size'
 	must be inserted on the opposite side of the fragment
 	(regardless of 'block-step-align').
@@ -402,7 +403,7 @@ by making heights of all lines an integer multiple of the <a>step unit</a>.
 	the closest multiple of the unit.
 	Negative <<length>> values are invalid.
 
-	[[!CSS21]] <a href="https://drafts.csswg.org/css2/visudet.html#line-height">&#xA7;10.8 Line height calculations</a>
+	[[!CSS2]] <a href="https://drafts.csswg.org/css2/visudet.html#line-height">&#xA7;10.8 Line height calculations</a>
 	defines how to compute the height of a line box from its inline-level content.
 	The rounding is applied to the resulting height of the line box,
 	and the additional space is distributed to