fix Q 0.4 in HTML too :-)

faq.html

@@ -808,7 +808,7 @@ program(s), clean up any files made by the program etc.</li>
 <div id="remarks_md">
 <div id="remarks">
 <div id="readme">
-<h3 id="q-0.5-what-should-i-put-in-the-remarks.md-file-of-my-submission">Q 0.5: What should I put in the remarks.md file of my submission?</h3>
+<h3 id="q-0.4-what-should-i-put-in-the-remarks.md-file-of-my-submission">Q 0.4: What should I put in the remarks.md file of my submission?</h3>
 </div>
 </div>
 </div>