Format fix 1993/leo, 1993/rince

1993/leo/index.html

@@ -415,7 +415,7 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 <p>To guess the computer’s number:</p>
 <pre><code>    ./mind [colors]</code></pre>
 <p>where:</p>
-<p>[colors] is the number of possible colors (1 to 15) (default: 6)</p>
+<p><code>[colors]</code> is the number of possible colors (1 to 15) (default: 6)</p>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>By default, the number of colors is 6. You may specify a
 value of between 1 and 15 colors. See the author’s notes