[css-size-adjust-1][editorial] Fixed Bikeshed issues

Author: SebastianZ

css-size-adjust-1/Overview.bs

@@ -66,7 +66,7 @@ Module interactions {#placement}
 Value Definitions {#values}
 -----------------
 
-  This specification follows the <a href="https://www.w3.org/TR/CSS2/about.html#property-defs">CSS property definition conventions</a> from [[!CSS2]]
+  This specification follows the <a href="https://www.w3.org/TR/CSS2/about.html#property-defs">CSS property definition conventions</a> from [[!CSS21]]
   using the <a href="https://www.w3.org/TR/css-values-3/#value-defs">value definition syntax</a> from [[!CSS-VALUES-3]].
   Value types not defined in this specification are defined in CSS Values &amp; Units [[!CSS-VALUES-3]].
   Combination with other CSS modules may expand the definitions of these value types.
@@ -132,15 +132,14 @@ Calculation of default adjustment {#default-adjustment-calculation}
 -------------------------------------------------------------------
 
 The adjustment performed should be based on preferences (of the
-renderer or the renderer's user) indicating the desired <dfn>minimum
-readable text size</dfn>.
+renderer or the renderer's user) indicating the desired <dfn export>minimum readable text size</dfn>.
 Given this preference, for each containing block of text to be adjusted,
-there is a <dfn>minimum block text size</dfn>:  the preference for the
+there is a <dfn export>minimum block text size</dfn>:  the preference for the
 minimum readable text size, times the width of the containing block,
 divided by the width of the device.
 
 The size adjustment involves multiplication of sizes by a ratio
-determined by the minimum block text size and the computed value of
+determined by the <a>minimum block text size</a> and the computed value of
 'font-size'.  This ratio must be at least the first divided by the
 second; however, in order to maintain differentiations between font
 sizes, it should often be slightly larger.  <span class="issue">Define