Update mailing list link to mailman3 location

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/index.mdwn b/index.mdwn
index 8925da252351a369d387d4f415d25dcb1f63da9a..66728ec7d673eea97fbb98ce0e2021e044ee3f66 100644 (file)
--- a/index.mdwn
+++ b/index.mdwn
@@ -192,8 +192,8 @@ learn a lot and see some great flights by showing up at a club launch.
 
 As we make progress, you can read about it in our [News](News) feed.  Feel
 free to subscribe to our 
-[mailing list](http://lists.gag.com).  We also 
-hang out on IRC channel #altusmetrum on irc.oftc.net if you have
+[mailing list](https://lists.gag.com/mailman3/postorius/lists/altusmetrum.lists.gag.com/).
+We also hang out on IRC channel #altusmetrum on irc.oftc.net if you have
 questions that aren't answered here.  You can also find us on 
 [Facebook](http://www.facebook.com/group.php?gid=341167482968), though note
 we don't check Facebook very often.