more typos

site/429_error.md

@@ -11,13 +11,14 @@ You are trying to access the website too quickly.
 
 If you are a person, and using the site as intended, please let us
 know about what you were doing when the rate limitation happened.
+See the "contact information" link at the bottom of this page.
 
 Any automated harvesting or roboting must follow directives in our
 <a href="/robots.txt">robots.txt</a> file.
 
 Bulk downloaders should visit
 the <a href="/ebooks/offline_catalogs.html">offline catalogs page</a>
-first. See also the <<a href="help/mirorring.html">mirroring
+first. See also the <a href="help/mirorring.html">mirroring
 how-to</a>.
 
 If you are bulk downloading for redistributing the contents, also see