Add Zulip chat stub

index.md

@@ -30,9 +30,10 @@ caption: Day-to-day
 maxdepth: 2
 ---
 
+roles
 intra-team-communication
 calendars
-roles
+zulip-chat
 project-management-with-gitlab
 monday-planning
 ```

zulip-chat.md

@@ -0,0 +1,18 @@
+# Zulip
+
+
+When BCCing a Zulip stream on a message to someone, Use the default that can be found under stream settings (click the gear icon you can get to from the down caret):
+
+```
+project.785f16fc671a5d8c0f2d4fbb161f16b3.show-sender@streams.zulipchat.com
+```
+
+When forwarding an e-mail to a Zulip stream, swap out `.show-sender` for `.include-footer.include-quotes.prefer-html`
+
+```
+project.785f16fc671a5d8c0f2d4fbb161f16b3.include-footer.prefer-html@streams.zulipchat.com
+```
+
+```{info}
+More about [sending a message to a Zulip stream by e-mail](https://zulipchat.com/help/message-a-stream-by-email)
+```