[css-round-display] Modify the value rule of offset-rotation

Author: Jihye Hong

css-round-display/Overview.bs

@@ -764,7 +764,7 @@ With the former, the position of the element changes when the value of the margi
 <h3 id="offset-rotation-property">Rotation at point: The 'offset-rotation' property</h3>
 <pre class='propdef'>
     Name: offset-rotation
-    Value: [ auto | reverse ] && <<angle>>
+    Value: [ auto | reverse ] || <<angle>>
     Initial: auto
     Applies to: All elements. In SVG, it applies to <a href="">container elements</a> excluding the <{defs}> element and all <a>graphics elements</a>
     Inherited: no

css-round-display/Overview.html

@@ -1067,7 +1067,7 @@ <h3 class="heading settled" data-level="7.5" id="offset-rotation-property"><span
       <td><dfn class="dfn-paneled css" data-dfn-type="property" data-export="" id="propdef-offset-rotation">offset-rotation</dfn>
      <tr class="value">
       <th>Value:
-      <td class="prod">[ auto <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-3/#comb-one">|</a> reverse ] <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-3/#comb-all">&amp;&amp;</a> <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-values-3/#angle-value" title="Expands to: turn | rad | grad | deg">&lt;angle></a>
+      <td class="prod">[ auto <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-3/#comb-one">|</a> reverse ] <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-3/#comb-any">||</a> <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-values-3/#angle-value" title="Expands to: turn | rad | grad | deg">&lt;angle></a>
      <tr>
       <th>Initial:
       <td>auto
@@ -1656,7 +1656,7 @@ <h2 class="no-num no-ref heading settled" id="property-index"><span class="conte
       <td>as specified
      <tr>
       <th scope="row"><a class="css" data-link-type="property" href="#propdef-offset-rotation">offset-rotation</a>
-      <td>[ auto | reverse ] &amp;&amp; &lt;angle>
+      <td>[ auto | reverse ] || &lt;angle>
       <td>auto
       <td>All elements. In SVG, it applies to container elements excluding the defs element and all graphics elements
       <td>no