Remove use of <param> from an example

Since that's an obsolete element, it's not so helpful to include.

Author: zhangenming

source

@@ -12978,18 +12978,15 @@ https://software.hixie.ch/utilities/js/live-dom-viewer/?%3C%21DOCTYPE%20HTML%3E%
   has to be applied iteratively.</p>
 
   <div class="example">
-
    <p>Consider the following markup fragment:</p>
 
-   <pre><code class="html">&lt;p>&lt;object>&lt;param>&lt;ins>&lt;map>&lt;a href="/">Apples&lt;/a>&lt;/map>&lt;/ins>&lt;/object>&lt;/p></code></pre>
+   <pre><code class="html">&lt;p>&lt;object>&lt;ins>&lt;map>&lt;a href="/">Apples&lt;/a>&lt;/map>&lt;/ins>&lt;/object>&lt;/p></code></pre>
 
    <p>To check whether "Apples" is allowed inside the <code>a</code> element, the content models are
    examined. The <code>a</code> element's content model is transparent, as is the <code>map</code>
-   element's, as is the <code>ins</code> element's, as is the part of the <code>object</code>
-   element's in which the <code>ins</code> element is found. The <code>object</code> element is
-   found in the <code>p</code> element, whose content model is <span>phrasing content</span>. Thus,
-   "Apples" is allowed, as text is phrasing content.</p>
-
+   element's, as is the <code>ins</code> element's, as is the <code>object</code> element's. The
+   <code>object</code> element is found in the <code>p</code> element, whose content model is
+   <span>phrasing content</span>. Thus, "Apples" is allowed, as text is phrasing content.</p>
   </div>
 
   <p>When a transparent element has no parent, then the part of its content model that is