[css-pseudo] Add warning to OM section.

Author: fantasai

css-pseudo/Overview.bs

@@ -749,6 +749,11 @@ Additions to the CSS Object Model</h2>
   <p class="note"><span class="note-prefix">Note </span>We may extend this
     section in the future to allow creation of pseudo-elements from script.
 
+  Issue: This entire section is a starting point for discussion.
+  Feedback is welcome.
+  Implementations, at this point, are not,
+  as we are not yet sure of our approach.
+
 <h3 id="CSSPseudoElement-interface">
 Interface CSSPseudoElement</h3>
 

css-pseudo/Overview.html

@@ -1177,6 +1177,12 @@ <h2 class="heading settled" data-level="6" id="cssom"><span class="secno">6. </s
     section in the future to allow creation of pseudo-elements from script.
 
 </p>
+      <p class="issue" id="issue-116a9e33"><a class="self-link" href="#issue-116a9e33"></a>This entire section is a starting point for discussion.
+  Feedback is welcome.
+  Implementations, at this point, are not,
+  as we are not yet sure of our approach.</p>
+
+
       <h3 class="heading settled" data-level="6.1" id="CSSPseudoElement-interface"><span class="secno">6.1. </span><span class="content">
 Interface CSSPseudoElement</span><a class="self-link" href="#CSSPseudoElement-interface"></a></h3>
 
@@ -1632,6 +1638,10 @@ <h2 class="no-num heading settled" id="issues-index"><span class="content">Issue
   they should go to <a href="http://lists.w3.org/Archives/Public/www-style/">www-style@w3.org</a>.<a href="#issue-68e6c4d7"> ↵ </a></div>
       <div class="issue">Authors seem to want <a class="property" data-link-type="propdesc" href="http://www.w3.org/TR/css-text-3/#text-align">text-align</a> on the list of supported properties.
   See e.g. <a href="http://css-tricks.com/almanac/selectors/p/placeholder/">comments here</a>.<a href="#issue-44dd3703"> ↵ </a></div>
+      <div class="issue">This entire section is a starting point for discussion.
+  Feedback is welcome.
+  Implementations, at this point, are not,
+  as we are not yet sure of our approach.<a href="#issue-116a9e33"> ↵ </a></div>
       <div class="issue">
     The approach in this draft
     is to start with a bare minimum