Add communication details.

website/docs/comms.md

@@ -1,3 +0,0 @@
-## Mailing List
-
-## Course Staff

website/docs/index.md

@@ -12,6 +12,18 @@ complete a final project.
 - **Location**: CS 1325
 - **Time**: Mondays and Wednesdays, 4:00-5:15
 
+## Mailing List
+
+Please use the mailing list if you want to contact the whole course:  
+
+- [compsci839-1-f18@lists.wisc.edu](compsci839-1-f18@lists.wisc.edu).
+
+All registered students should be on this list. If you are not registered but
+would like to follow along, please let me know and I will try to add you.
+
+Otherwise, you can contact me directly. To ensure that your email goes to the
+right place, please start the subject with **CS839**.
+
 ## Course Staff
 
 - **Instructor**: Justin Hsu

website/mkdocs.yml

@@ -20,7 +20,6 @@ pages:
     - About: 'index.md'
     - Syllabus: 'syllabus.md'
     - Course Format: 'format.md'
-    - Communication: 'comms.md'
   - Schedule:
     - Lectures: 'schedule/lectures.md'
     - Deadlines: 'schedule/deadlines.md'