fix links to our mailing lists

Their implementation was changed.

content/news/en/2018-08-20-knot-resolver-3.0.0.rst

@@ -19,7 +19,7 @@ Incompatible changes
   it will be later reworked to reflect development in IEFT dnsop working group
 - version module was permanently removed because it was not really used by users;
   if you want to receive notifications about new releases please subscribe to
-  https://lists.nic.cz/cgi-bin/mailman/listinfo/knot-resolver-announce
+  https://lists.nic.cz/postorius/lists/knot-resolver-announce.lists.nic.cz/
 
 Bugfixes
 --------

content/pages/en/development.rst

@@ -27,8 +27,8 @@ Community
 -  You can also report bugs to: `knot-resolver@labs.nic.cz`_
 
 .. _Gitter: https://gitter.im/CZ-NIC/knot-resolver
-.. _knot-resolver-users@lists.nic.cz: https://lists.nic.cz/mailman/listinfo/knot-resolver-users
-.. _knot-resolver-announce@lists.nic.cz: https://lists.nic.cz/mailman/listinfo/knot-resolver-announce
+.. _knot-resolver-users@lists.nic.cz:    https://lists.nic.cz/postorius/lists/knot-resolver-users.lists.nic.cz/
+.. _knot-resolver-announce@lists.nic.cz: https://lists.nic.cz/postorius/lists/knot-resolver-announce.lists.nic.cz/
 .. _knot-resolver@labs.nic.cz: mailto:knot-resolver@labs.nic.cz
 
 Security issues

content/pages/en/download.rst

@@ -13,7 +13,7 @@ distribution.
 
 Please note that we occasionally release a major version which may require
 manual upgrade. Please subscribe to our `knot-resolver-announce
-<https://lists.nic.cz/mailman/listinfo/knot-resolver-announce>`__ mailing list
+<https://lists.nic.cz/postorius/lists/knot-resolver-announce.lists.nic.cz/>`__ mailing list
 to be notified of new releases, including upgrade instructions if necessary.
 
 

content/pages/en/support-free.rst

@@ -41,6 +41,6 @@ If you have contributed to Knot Resolver development in some way, or work on a p
 Finally, Knot Resolver has very similar free support policy as PowerDNS and this page is inspired by
 `PowerDNS blog post <https://blog.powerdns.com/2016/01/18/open-source-support-out-in-the-open/>`_.
 
-.. _mailing list: https://lists.nic.cz/mailman/listinfo/knot-resolver-users
+.. _mailing list: https://lists.nic.cz/postorius/lists/knot-resolver-users.lists.nic.cz/
 .. _issue tracker: https://gitlab.nic.cz/knot/knot-resolver/issues
 .. _Gitter channel: https://gitter.im/CZ-NIC/knot-resolver