Main part of the content has a dedicated element

This was missed in 1dec930.

Fixes whatwg#3795.

source

@@ -67154,161 +67154,6 @@ customElements.define("x-foo", class extends HTMLElement {
 
   <h3 split-filename="semantics-other" id="common-idioms">Common idioms without dedicated elements</h3>
 
-  <h4>The main part of the content</h4>
-
-  <p>The main content of a page &mdash; not including headers and footers, navigation links,
-  sidebars, advertisements, and so forth &mdash; can be marked up in a variety of ways, depending on
-  the needs of the author.</p>
-
-  <p>The simplest solution is to not mark up the main content at all, and just leave it as implicit.
-  Another way to think of this is that the <code>body</code> elements marks up the main content of
-  the page, and the bits that aren't main content are excluded through the use of more appropriate
-  elements like <code>aside</code> and <code>nav</code>.</p>
-
-  <div class="example">
-
-   <p>Here is a short Web page marked up along this minimalistic school of thought. The main content
-   is highlighted. Notice how all the <em>other</em> content in the <code>body</code> is marked up
-   with elements to indicate that it's not part of the main content, in this case
-   <code>header</code>, <code>nav</code>, and <code>footer</code>.</p>
-
-   <pre><code class="html" data-x="">&lt;!DOCTYPE HTML>
-&lt;html lang="en">
- &lt;head>
-  &lt;title> My Toys &lt;/title>
- &lt;/head>
- &lt;body>
-  &lt;header>
-   &lt;h1>My toys&lt;/h1>
-  &lt;/header>
-  &lt;nav>
-   &lt;p>&lt;a href="/">Home&lt;/a>&lt;/p>
-   &lt;p>&lt;a href="/contact">Contact&lt;/a>&lt;/p>
-  &lt;/nav>
-<strong>  &lt;p>I really like my chained book and my telephone. I'm not such a
-  fan of my big ball.&lt;/p>
-  &lt;p>Another toy I like is my mirror.&lt;/p></strong>
-  &lt;footer>
-   &lt;p>&copy; copyright 2010 by the boy&lt;/p>
-  &lt;/footer>
- &lt;/body>
-&lt;/html></code></pre>
-
-  </div>
-
-  <p>If the main content is an independent unit of content that one could imagine syndicating
-  independently, then the <code>article</code> element would be appropriate to mark up the main
-  content of the document.</p>
-
-  <div class="example">
-
-   <p>The document in the previous example is here recast as a blog post:</p>
-
-   <pre><code class="html" data-x="">&lt;!DOCTYPE HTML>
-&lt;html lang="en">
- &lt;head>
-  &lt;title> The Boy Blog: My Toys &lt;/title>
- &lt;/head>
- &lt;body>
-  &lt;header>
-   &lt;h1>The Boy Blog&lt;/h1>
-  &lt;/header>
-  &lt;nav>
-   &lt;p>&lt;a href="/">Home&lt;/a>&lt;/p>
-   &lt;p>&lt;a href="/contact">Contact&lt;/a>&lt;/p>
-  &lt;/nav>
-<strong>  &lt;article>
-   &lt;header>
-    &lt;h1>My toys&lt;/h1>
-    &lt;p>Published August 4th&lt;/p>
-   &lt;/header>
-   &lt;p>I really like my chained book and my telephone. I'm not such a
-   fan of my big ball.&lt;/p>
-   &lt;p>Another toy I like is my mirror.&lt;/p>
-  &lt;/article></strong>
-  &lt;footer>
-   &lt;p>&copy; copyright 2010 by the boy&lt;/p>
-  &lt;/footer>
- &lt;/body>
-&lt;/html></code></pre>
-
-  </div>
-
-  <p>If the main content is not an independent unit of content so much as a section of a larger
-  work, for instance a chapter, then the <code>section</code> element would be appropriate to mark
-  up the main content of the document.</p>
-
-  <div class="example">
-
-   <p>Here is the same document, but as a chapter in an online book:</p>
-
-   <pre><code class="html" data-x="">&lt;!DOCTYPE HTML>
-&lt;html lang="en">
- &lt;head>
-  &lt;title> Chapter 2: My Toys &mdash; The Book of the Boy &lt;/title>
- &lt;/head>
- &lt;body>
-  &lt;header>
-   &lt;hgroup>
-    &lt;h1>The Book of the Boy&lt;/h1>
-    &lt;h2>A book about boy stuff&lt;/h2>
-   &lt;/hgroup>
-  &lt;/header>
-  &lt;nav>
-   &lt;p>&lt;a href="/">Front Page&lt;/a>&lt;/p>
-   &lt;p>&lt;a href="/toc">Table of Contents&lt;/a>&lt;/p>
-   &lt;p>&lt;a href="/c1">Chapter 1&lt;/a> &mdash; &lt;a href="/c3">Chapter 3&lt;/a>&lt;/p>
-  &lt;/nav>
-<strong>  &lt;section>
-   &lt;h1>Chapter 2: My Toys&lt;/h1>
-   &lt;p>I really like my chained book and my telephone. I'm not such a
-   fan of my big ball.&lt;/p>
-   &lt;p>Another toy I like is my mirror.&lt;/p>
-  &lt;/section></strong>
- &lt;/body>
-&lt;/html></code></pre>
-
-  </div>
-
-  <p>If neither <code>article</code> nor <code>section</code> would be appropriate, but the main
-  content still needs an explicit element, for example for styling purposes, then the
-  <code>main</code> element can be used.</p>
-
-  <div class="example">
-
-   <p>This is the same as the original example, but using <code>main</code> for the main content
-   instead of leaving it implied:</p>
-
-   <pre><code class="html" data-x="">&lt;!DOCTYPE HTML>
-&lt;html lang="en">
- &lt;head>
-  &lt;title> My Toys &lt;/title>
-  &lt;style>
-   body > main { background: navy; color: yellow; }
-  &lt;/style>
- &lt;/head>
- &lt;body>
-  &lt;header>
-   &lt;h1>My toys&lt;/h1>
-  &lt;/header>
-  &lt;nav>
-   &lt;p>&lt;a href="/">Home&lt;/a>&lt;/p>
-   &lt;p>&lt;a href="/contact">Contact&lt;/a>&lt;/p>
-  &lt;/nav>
-<strong>  &lt;main>
-   &lt;p>I really like my chained book and my telephone. I'm not such a
-   fan of my big ball.&lt;/p>
-   &lt;p>Another toy I like is my mirror.&lt;/p>
-  &lt;/main></strong>
-  &lt;footer>
-   &lt;p>&copy; copyright 2010 by the boy&lt;/p>
-  &lt;/footer>
- &lt;/body>
-&lt;/html></code></pre>
-
-  </div>
-
-
   <h4 id="rel-up">Bread crumb navigation</h4>
 
   <p>This specification does not provide a machine-readable way of describing bread-crumb navigation
@@ -121381,7 +121226,7 @@ INSERT INTERFACES HERE
   Erik Arvidsson,
   Erik Charlebois,
   Erik Rose,
-  espretto, <!-- on GitHub -->
+  espretto, <!-- GitHub -->
   Evan Jacobs,
   Evan Martin,
   Evan Prodromou,
@@ -121969,13 +121814,14 @@ INSERT INTERFACES HERE
   Tom Baker,
   Tom Pike,
   Tom Schuster,
+  Tomasz Jakut, <!-- Comandeer on GitHub -->
   Tommy Thorsen,
   Tony Ross,
   Tooru Fujisawa,
   Travis Leithead,
   Trevor Rowbotham,
   Trevor Saunders,
-  triple-underscore, <!-- on GitHub -->
+  triple-underscore, <!-- GitHub -->
   Tyler Close,
   Valentin Gosu,
   Vardhan Gupta,