update pages and sitemap based on recent commits

faq.html

@@ -982,7 +982,7 @@ and
 itself.</p>
 <p>Do remember that if your submission requires different filenames, then you
 <strong>MUST</strong> make a <strong>COPY</strong> of them in your <code>Makefile</code>. See also
-<a href="next/rules.html#rule-5---purity">Rule 5 - Purity</a>.</p>
+<a href="next/rules.html#rule-5---integrity">Rule 5 - Integrity</a>.</p>
 <p>Jump to: <a href="#">top</a></p>
 <hr style="width:50%;text-align:left;margin-left:0">
 <hr style="width:50%;text-align:left;margin-left:0">
@@ -1325,7 +1325,7 @@ modes, it also verifies them after the fact and if they are not correct it is an
 <p>If you do need different permissions, then see the
 FAQ on “<a href="#file_perms">file permissions</a>”. Also keep in mind
 <a href="next/rules.html#rule-4---files">Rule 4 - Files</a>,
-<a href="next/rules.html#rule-5---purity">Rule 5 - Purity</a>,
+<a href="next/rules.html#rule-5---integrity">Rule 5 - Integrity</a>,
 and
 <a href="next/rules.html#rule-16---anonymous">Rule 16 - Anonymous</a>.</p>
 <p>The <code>txzchk(1)</code> tool will also verify file/directory permissions (and many other