Update compose.env

Author: Sean P. Kane

compose.env

@@ -1,8 +1,12 @@
 # This file should be updated and copied to .env
+HUBOT_ADAPTER=unknown
 STUDENT_ID=unknown
-SLACK_TOKEN=unkown
 HUB_USER=unknown
-HUBOT_ADAPTER=slack
+
+# Rocket Chat users can ignore this SLACK var
+SLACK_TOKEN=unkown
+
+# Slack users can ignore these ROCKETCHAT vars
 ROCKETCHAT_URL=http://127.0.0.1:3000
 ROCKETCHAT_USER=hubot
 ROCKETCHAT_PASSWORD=unknown