Make ^NOTE in markdown/html files bold

2018/mills/index.html

@@ -444,14 +444,14 @@ Now try typing:</p>
 it would have been in 1984 with a VAX-11/PDP-11! Once it reaches the end of the
 line, hit enter and see what happens again. When you’re tired of it hit ctrl-c.</p>
 <p>But there is much more to this entry! See below.</p>
-<p>NOTE: To quit, press Control-E.</p>
+<p><strong>NOTE</strong>: To quit, press Control-E.</p>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>Do small machines only need small programs? This program weighs in at just
 3636 bytes, which is considerably lighter than the original machine it can replace.</p>
 <p>This program can take you back to the start of everything, it is possible to
 run v0. Just type:</p>
 <pre><code>    ./v0</code></pre>
-<p>NOTE: To quit v0, press Control-E.</p>
+<p><strong>NOTE</strong>: To quit v0, press Control-E.</p>
 <p>You will be greeted with a familiar prompt of “login”. The username and
 password are “dmr” and “dmr”. To make things more familiar you’ll need to
 create ‘.’ as it hasn’t been invented yet on this image!</p>
@@ -464,7 +464,7 @@ program that replaces an even larger machine that can run BSD 2.9. To start this
 <pre><code>    ./prog</code></pre>
 <p>At the <code>&gt;boot</code> prompt, type return.</p>
 <p>At the “:” prompt, type <code>rk(0,0)rkunix</code>.</p>
-<p>NOTE: To quit prog, press Control-E.</p>
+<p><strong>NOTE</strong>: To quit prog, press Control-E.</p>
 <p>This should now be very familiar and it is possible to compile and run one of
 the very first IOCCC entries <a href="../../1984/mullender/index.html">1984/mullender</a>, as
 shown earlier.</p>
@@ -472,7 +472,7 @@ shown earlier.</p>
 <pre><code>    ./v6</code></pre>
 <p>At the <code>@</code> prompt, type <code>rkunix</code>. You might want to type <code>stty -lcase</code> as
 otherwise the output will be in all caps.</p>
-<p>NOTE: To quit v6, press Control-E.</p>
+<p><strong>NOTE</strong>: To quit v6, press Control-E.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <h3 id="this-ioccc-entry-is-dedicated-to-the-late-dennis-m.-ritchie"><em>This IOCCC entry is dedicated to the late Dennis M. Ritchie</em></h3>
 <h3 id="the-program">The Program:</h3>