replace old ASCII > style with markdown code blocks

1994/shapiro/index.html

@@ -181,10 +181,8 @@ this program. Note that this alt file is currently missing. See
 <a href="../../bugs.html#1994_shapiro">1994 shapiro bugs</a> for details.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>The basic theme (pun) of this program is:</p>
-<blockquote>
-<p>“This time (everything) is not where it should be.”
-~~~~</p>
-</blockquote>
+<pre><code>    &quot;This time (everything) is not where it should be.&quot;
+          ~~~~</code></pre>
 <p>My entry (<a href="shapiro.c">shapiro.c</a>) is mostly comments, formatted in the shape of a
 clock. If you strip out the comments and look at the code you will
 quickly realize that the comments were the important part and that