[css-display] Fix header, add issues.

Author: fantasai

css-display/Overview.bs

@@ -421,7 +421,7 @@ Automatic Box Type Transformations</h3>
 
 
 <h2 id='box-suppress'>
-Toggling box generation: the 'box-suppress' property</h2>
+Toggling Box Generation: the 'box-suppress' property</h2>
 
 	<pre class="propdef">
 	Name: box-suppress
@@ -480,10 +480,14 @@ Toggling box generation: the 'box-suppress' property</h2>
 
 	Issue: We welcome better naming suggestions on this property.
 
+	Issue: Please send use cases (examples of where this property or something close to it is useful and necessary)
+	<a href="mailto:www-style@w3.org?subject=%5Bcss-display%5D%20box-suppres%20use%20cases">to the CSSWG</a> so that we can be sure we're designing the details of its behavior correctly.
+
 <h2 id='run-in'>
 Run-In Layout</h2>
 
-	A <dfn>run-in box</dfn> is a box that <em>merges into</em> a block that comes after it,
+	A <dfn lt="run-in | run-in box">run-in box</dfn>
+	is a box that <em>merges into</em> a block that comes after it,
 	inserting itself at the beginning of that block’s inline-level content.
 	This is useful for formatting compact headlines, definitions, and other similar things,
 	where the appropriate DOM structure is to have a headline preceding the following prose,
@@ -558,6 +562,8 @@ Run-In Layout</h2>
 
 	Note: This run-in model is slightly different from the one proposed in earlier revisions of [[!CSS21]].
 
+	Issue: <a href="http://www.w3.org/mid/B81F7808-D972-458D-970F-3900E82A0F27@rivoal.net">Interaction of run-in and ::first-letter</a>
+
 <h2 id='glossary'>
 Appendix A: Glossary</h2>