Make ^NOTE in markdown/html files bold

1992/marangon/index.html

@@ -416,9 +416,9 @@ Location: <a href="../../location.html#IT">IT</a> - <em>Italian Republic</em> (<
 <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 <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
+<p><strong>NOTE</strong>: Some compilers have had trouble optimizing this entry.</p>
+<p><strong>NOTE</strong>: Some systems need to compile with <code>-ltermcap</code> as well as <code>-lcurses</code>.</p>
+<p><strong>NOTE</strong>: The original winning source
 <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1992/marangon/marangon.orig.c">marangon.orig.c</a> assumed that
 <code>exit(3)</code> returns a value which cause problems for some systems where <code>exit(3)</code>
 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>