Explicitly mention flexbox fix-up in the layout algorithm, to make it clearer that it happens before anything else.

Author: tabatkins

css3-flexbox/Overview.html

@@ -1761,6 +1761,8 @@ <h2 id=layout-algorithm><span class=secno>7. </span> Flexbox Layout
     relatively-long and complex algorithm.</p>
 
    <ol>
+    <li value=0>Generate anonymous flexbox items as necessary.
+
     <li>Reorder flexbox items according to &lsquo;<a
      href="#flex-order0"><code class=property>flex-order</code></a>&rsquo;.
 
@@ -1799,6 +1801,10 @@ <h2 id=layout-algorithm><span class=secno>7. </span> Flexbox Layout
   <p>To lay out a flexbox and its contents, follow these steps:
 
   <ol>
+   <li value=0>Generate anonymous flexbox items around runs of continguous
+    inline content in the flexbox, as described in the <a
+    href="#flex-items">Flexbox Items</a> section.
+
    <li>Re-order the flexbox items according to their &lsquo;<a
     href="#flex-order0"><code class=property>flex-order</code></a>&rsquo;.
     The items with the lowest (most negative) &lsquo;<a

css3-flexbox/Overview.src.html

@@ -851,6 +851,8 @@ <h2 id='layout-algorithm'>
 		<p>This note will outline the general structure of the layout algorithm, before I go into the ugly details below, to aid in reading the relatively-long and complex algorithm.</p>
 
 		<ol>
+			<li value=0>Generate anonymous flexbox items as necessary.</li>
+
 			<li>Reorder flexbox items according to 'flex-order'.</li>
 
 			<li>Find the hypothetical main size of every flexbox item.</li>
@@ -880,6 +882,8 @@ <h2 id='layout-algorithm'>
 	<p>To lay out a flexbox and its contents, follow these steps:</p>
 
 	<ol>
+		<li value=0>Generate anonymous flexbox items around runs of continguous inline content in the flexbox, as described in the <a href="#flex-items">Flexbox Items</a> section.</li>
+		
 		<li>Re-order the flexbox items according to their 'flex-order'.  The items with the lowest (most negative) 'flex-order' values are first in the ordering.  If multiple items share a 'flex-order' value, they're ordered by document order.  This affects the order in which the flexbox items generate boxes in the box-tree, and how the rest of this algorithm deals with the items.</li>
 
 		<li>