added mailing lists

index.md

@@ -24,7 +24,13 @@ See [Canvas]({{site.canvas}}) for all zoom meeting links for classes and office
 
 **Class Time:** Monday and Wednesday 6:30-7:50PM (PDT)
 
-# Course staff
+# Mailing Lists
+
+**Staff** mailing list: [Mail]({{site.staff_email}})
+
+**Class** mailing list: [Mailman]({{site.piazza}})
+
+# Course Staff
 
 ## Instructor