Make ^NOTE in markdown/html files bold

1986/stein/README.md

@@ -21,7 +21,7 @@
 
 ## Judges' remarks:
 
-NOTE: to avoid problems with news and mail, the single line was split
+**NOTE**: to avoid problems with news and mail, the single line was split
 into 3 lines.  Join all lines into a single line to recreate
 the original file.
 

1986/stein/index.html

@@ -415,7 +415,7 @@ Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em></l
 <h2 id="try">Try:</h2>
 <pre><code>    ./stein.sh</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
-<p>NOTE: to avoid problems with news and mail, the single line was split
+<p><strong>NOTE</strong>: to avoid problems with news and mail, the single line was split
 into 3 lines. Join all lines into a single line to recreate
 the original file.</p>
 <p>The <code>\015</code> in the above <code>printf(1)</code> command produces a control-N.</p>