[css-ruby] fix description for ruby-merge:collapse

Author: kojiishi

css-ruby/Overview.html

@@ -1178,11 +1178,12 @@ <h3 id=rubymerge><span class=secno>3.2. </span>Ruby merge: the ‘<a
 
      <dd>
       <p> All ruby annotation boxes are concatenated, and rendered to the
-       concatenated ruby base boxes. This style is called Group-ruby in <a
-       href="#JLREQ" rel=biblioentry>[JLREQ]<!--{{JLREQ}}--></a>.
+       concatenated ruby base boxes. This style renders similar to Group-ruby
+       in <a href="#JLREQ" rel=biblioentry>[JLREQ]<!--{{JLREQ}}--></a>,
+       except that it allows line break between annotation pairs.
 
       <div class=example>
-       <p>The following two markups render the same:
+       <p>The following two markups render the same if fit in a line:
 
        <pre>&lt;ruby&gt;無常&lt;rt&gt;むじょう&lt;/ruby&gt;</pre>
 

css-ruby/Overview.src.html

@@ -783,11 +783,12 @@ <h3 id="rubymerge">Ruby merge: the 'ruby-merge' property</h3>
 			<p>
 				All ruby annotation boxes are concatenated,
 				and rendered to the concatenated ruby base boxes.
-				This style is called Group-ruby in [[JLREQ]].
+				This style renders similar to Group-ruby in [[JLREQ]],
+				except that it allows line break between annotation pairs.
 			</p>
 
 			<div class="example">
-				<p>The following two markups render the same:</p>
+				<p>The following two markups render the same if fit in a line:</p>
 				<pre>&lt;ruby&gt;無常&lt;rt&gt;むじょう&lt;/ruby&gt;</pre>
 				<p>and:</p>
 				<pre>&lt;ruby style="ruby-merge:collapse"&gt;&lt;rb&gt;無&lt;rb&gt;常&lt;rt&gt;む&lt;rt&gt;じょう&lt;/ruby&gt;</pre>