a few fixes on the download page

Doc/tools/sphinxext/download.html

@@ -14,7 +14,7 @@
 
 <p>To download an archive containing all the documents for this version of
 Python in one of various formats, follow one of links in this table. The numbers
-in the table are the size of the download files in Kilobytes.</p>
+in the table are the size of the download files in megabytes.</p>
 
 <table class="docutils">
   <tr><th>Format</th><th>Packed as .zip</th><th>Packed as .tar.bz2</th></tr>
@@ -54,7 +54,7 @@ platform. These are created on Unix using the InfoZIP zip program.</p>
 <h2>Problems</h2>
 
 <p>If you have comments or suggestions for the Python documentation, please send
-email to <a href="docs@python.org">docs@python.org</a>.</p>
+email to <a href="mailto:docs@python.org">docs@python.org</a>.</p>
 {% endif %}
 
 {% endblock %}