Make flex-flow take its values in any order, with either optional.

Author: tabatkins

css3-flexbox/Overview.html

@@ -646,8 +646,8 @@ <h3 id=flex-flow><span class=secno>3.1. </span> Flexbox Flow Direction: the
      <th>Values:
 
      <td>&lt;&lsquo;<a href="#flex-direction"><code
-      class=property>flex-direction</code></a>&rsquo;> &lt;&lsquo;<a
-      href="#flex-wrap"><code class=property>flex-wrap</code></a>&rsquo;>?
+      class=property>flex-direction</code></a>&rsquo;> || &lt;&lsquo;<a
+      href="#flex-wrap"><code class=property>flex-wrap</code></a>&rsquo;>
 
     <tr>
      <th>Initial:
@@ -1815,7 +1815,7 @@ <h2 class=no-num id=property>Property index</h2>
     <tr>
      <th><a class=property href="#flex-flow0">flex-flow</a>
 
-     <td>&lt;&lsquo;flex-direction&rsquo;> &lt;&lsquo;flex-wrap&rsquo;>?
+     <td>&lt;&lsquo;flex-direction&rsquo;> || &lt;&lsquo;flex-wrap&rsquo;>
 
      <td>see individual properties
 

css3-flexbox/Overview.src.html

@@ -264,7 +264,7 @@ <h3 id='flex-flow'>
 			<td><dfn>flex-flow</dfn>
 		<tr>
 			<th>Values:
-			<td>&lt;'flex-direction'> &lt;'flex-wrap'>?
+			<td>&lt;'flex-direction'> || &lt;'flex-wrap'>
 		<tr>
 			<th>Initial:
 			<td>see individual properties