Merge pull request #19 from alex/https-links

Use an HTTPS url for our mailing list
diff --git a/docs/community.rst b/docs/community.rst
index 5576382..e9d6bd8 100644
--- a/docs/community.rst
+++ b/docs/community.rst
@@ -9,7 +9,7 @@
 * `Documentation`_
 * IRC: ``#crytography-dev`` on ``irc.freenode.net``
 
-.. _`Mailing list`: http://mail.python.org/mailman/listinfo/cryptography-dev
+.. _`Mailing list`: https://mail.python.org/mailman/listinfo/cryptography-dev
 .. _`Source code`: https://github.com/alex/crytopgraphy
 .. _`Issue tracker`: https://github.com/alex/crytopgraphy/issues
 .. _`Documentation`: https://cryptography.readthedocs.org/