rolling.html: Eliminate pointless `h2' and promote subheadings.

No idea what I was thinking back then.  Anyway, it makes rather more
sense like this.

diff --git a/rolling.html b/rolling.html
index 1feb248..dde5168 100644 (file)
--- a/rolling.html
+++ b/rolling.html
@@ -141,8 +141,6 @@
 <script type="text/javascript"><!--
        DEP_UI.add_elt_class(DEP_UI.elt('help'), 'conceal');
 --></script>
 <script type="text/javascript"><!--
        DEP_UI.add_elt_class(DEP_UI.elt('help'), 'conceal');
 --></script>

-<h2>What this program does</h2>
-

 <div id=js-note>
 <script type="text/javascript"><!--
        DEP_UI.add_elt_class(DEP_UI.elt('js-note'), 'conceal');
 <div id=js-note>
 <script type="text/javascript"><!--
        DEP_UI.add_elt_class(DEP_UI.elt('js-note'), 'conceal');


@@ -153,7 +151,7 @@ well.  It only requires first-party scripts;
 see <a href="#privacy">Privacy</a> for more details.
 </div>
 
 see <a href="#privacy">Privacy</a> for more details.
 </div>
 

-<h3>Background</h3>
+<h2>Background</h2>

 
 <p>When you pass round or square wire through flat rolls it gets flatter
 and longer, but it also gets wider.  You can exploit this to make thin
 
 <p>When you pass round or square wire through flat rolls it gets flatter
 and longer, but it also gets wider.  You can exploit this to make thin


@@ -182,7 +180,7 @@ handle this case properly.
 <p>You can see the <a href="rolling-eqn.html">detailed equations</a>
 used for this calculation if you&rsquo;re interested.
 
 <p>You can see the <a href="rolling-eqn.html">detailed equations</a>
 used for this calculation if you&rsquo;re interested.
 

-<h3>Use</h3>
+<h2>Use</h2>

 
 <p>Boxes with light red or white backgrounds are entry boxes for you to
 type in your requirements; boxes with dark red or grey backgrounds are
 
 <p>Boxes with light red or white backgrounds are entry boxes for you to
 type in your requirements; boxes with dark red or grey backgrounds are


@@ -205,7 +203,7 @@ will be in millimetres; if you use inches, the results will be in
 inches.  Whatever you use, the results are displayed to only 3 decimal
 places.
 
 inches.  Whatever you use, the results are displayed to only 3 decimal
 places.
 

-<h3>Code and credits</h3>
+<h2>Code and credits</h2>

 
 <p>The code which makes this page work
 is <a href="https://www.gnu.org/philosophy/free-sw.html">free
 
 <p>The code which makes this page work
 is <a href="https://www.gnu.org/philosophy/free-sw.html">free


@@ -224,7 +222,7 @@ patches</a>.
 the text was written by Mark Wooding and Gary Wooding.  The data used
 to derive the computation was provided by Gary Wooding.
 
 the text was written by Mark Wooding and Gary Wooding.  The data used
 to derive the computation was provided by Gary Wooding.
 

-<h3 id="privacy">Privacy</h3>
+<h2 id="privacy">Privacy</h2>

 
 <p>There are no cookies or other trackers here.  This page does not use
 externally hosted scripts, fonts, images, or anything else.  The server
 
 <p>There are no cookies or other trackers here.  This page does not use
 externally hosted scripts, fonts, images, or anything else.  The server