Add issue about more examples for object-*

Author: tabatkins

css3-images/Overview.html

@@ -1920,6 +1920,8 @@ <h3 id=object-fit><span class=secno>5.4. </span> Sizing Objects: the
     looks identical to </code>&rsquo;<span class=css>contain</span>.</p>
   </div>
 
+  <p class=issue>Find some good use-cases and make examples out of them.
+
   <p class=note>Note: the &lsquo;<a href="#object-fit0"><code
    class=property>object-fit</code></a>&rsquo; property has similar semantics
    to the <code>fit</code> attribute in <a href="#SMIL10"
@@ -2005,6 +2007,8 @@ <h3 id=object-position><span class=secno>5.5. </span> Positioning Objects:
   <p class=note>Note that areas of the box not covered by the replaced
    element will show the element's background.
 
+  <p class=issue>Find some good use-cases and make examples out of them.
+
   <p>User agents MAY accept &lsquo;<code
    class=property>image-position</code>&rsquo; as an alias for &lsquo;<a
    href="#object-position0"><code

css3-images/Overview.src.html

@@ -1263,6 +1263,8 @@ <h3 id="object-fit">
 		in this case looks identical to '<span class='css'>contain</span>.</p>
 	</div>
 
+	<p class='issue'>Find some good use-cases and make examples out of them.</p>
+
 	<p class="note">Note: the 'object-fit' property has similar semantics to
 	the <code>fit</code> attribute in [[SMIL10]].</p>
 
@@ -1318,6 +1320,8 @@ <h3 id="object-position">
 	<p class="note">Note that areas of the box not covered by the replaced
 	element will show the element's background.</p>
 
+	<p class='issue'>Find some good use-cases and make examples out of them.</p>
+
 	<p>User agents MAY accept 'image-position' as an alias for 'object-position', as a
 	previous version of this specification used that name.  Authors must not
 	use 'image-position' in their stylesheets.</p>