Make ^NOTE in markdown/html files bold

2011/hamaji/README.md

@@ -39,7 +39,7 @@ The source code is a solution to a Paint by Numbers puzzle when you
 paint by C.  Try your hand at solving a few of the other `.nono`
 files and then compare your solution with this program!
 
-NOTE: NONOGRAM (r) is a registered Trademark and is used with permission. See
+**NOTE**: NONOGRAM (r) is a registered Trademark and is used with permission. See
 <https://nonogram.com> for more information.
 
 

2011/hamaji/index.html

@@ -431,7 +431,7 @@ IOCCC was lucky to get such a fine submission!</p>
 <p>The source code is a solution to a Paint by Numbers puzzle when you
 paint by C. Try your hand at solving a few of the other <code>.nono</code>
 files and then compare your solution with this program!</p>
-<p>NOTE: NONOGRAM (r) is a registered Trademark and is used with permission. See
+<p><strong>NOTE</strong>: NONOGRAM (r) is a registered Trademark and is used with permission. See
 <a href="https://nonogram.com" class="uri">https://nonogram.com</a> for more information.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>The format of the input files are as same as this site: