Fixes in most of 1992 index.html files

With the exception of 1992/nathan/index.html the entries of 1992 should
all be okay. The reason nathan cannot be done yet is some things have to
be decided first.

This commit fixes:

    1992/marangon/index.html
    1992/vern/index.html
    1992/westley/index.html

1992/marangon/index.html

@@ -412,9 +412,9 @@ Location: <a href="../../location.html#IT">IT</a> - <em>Italian Republic</em> (<
 <h2 id="to-use">To use:</h2>
 <pre><code>    ./marangon</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
-<p>The object is to refill the table with 5’s, by incrementing or decrementing
+<p>The object is to refill the table with <code>5</code>s, by incrementing or decrementing
 numbers as needed. It is the side effects that get you into trouble. If you
-are not careful, you may find things “at 6’s and 7’s”. :-)</p>
+are not careful, you may find things “at <code>6</code>s and <code>7</code>s”. :-)</p>
 <p>NOTE: Some compilers have had trouble optimizing this entry.</p>
 <p>NOTE: Some systems need to compile with <code>-ltermcap</code> as well as <code>-lcurses</code>.</p>
 <p>NOTE: The original winning source
@@ -423,8 +423,8 @@ are not careful, you may find things “at 6’s and 7’s”. :-)</p>
 returns a <code>void</code>. The file <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1992/marangon/marangon.c">marangon.c</a>
 avoids this problem.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
-<p>It starts off by creating a table with number 5 in all places. The CPU melts
-the numbers and you must return them in original state. When you increase a
+<p>It starts off by creating a table with the number <code>5</code> in all places. The CPU melts
+the numbers and you must return them to the original state. When you increase a
 number, all the other eight numbers next to it decrease and vice-versa.</p>
 <!--