Typo fixes in inc/ and next/

A typo that was missed because I did not look at that part of the file
was 'quidelines' instead of 'guidelines'. This has been fixed in inc/
and next/.

next/guidelines.html

@@ -391,7 +391,7 @@ MIGHT</strong> be used in the next IOCCC. In some cases they might
 even be a copy of the guidelines from the previous IOCCC.</p>
 <p>See our <a href="../faq.html#feedback">FAQ about providing feedback</a> as well
 as our <a href="../faq.html#question">FAQ about asking questions</a> about
-these quidelines.</p>
+these guidelines.</p>
 <h1 id="the-ioccc-is-closed">The IOCCC is closed</h1>
 <p>The IOCCC is <strong>NOT</strong> accepting new submissions at this time. See the
 <a href="../years.html">IOCCC winning entries page</a> for the entries that have won the