Update README to add new

esanchezm · Feb 11, 2015 · cac4647 · cac4647
1 parent 3c2e9a9
commit cac4647
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -33,8 +33,11 @@ You can optionally set a diferent slack channel, username or avatar to customize
 heroku config:set SLACK_CHANNEL=#yourchannel\
                   SLACK_USERNAME="AWS CloudWatch" \
                   SLACK_ICON_URL="http://www.example.com/bot_avatar.png"
+                  SLACK_ICON_EMOJI=":ghost:"
 ```
 
+Notice that `SLACK_ICON_URL` and `SLACK_ICON_EMOJI` are mutually exclusive.
+
 Additional configuration parameters for SES notifications:
 
 ```
@@ -43,6 +46,7 @@ heroku config:set SLACK_SES_CHANNEL=#otherchannel\
                   SLACK_SES_ICON_URL="http://www.example.com/bot_avatar.png"
 ```
 
+
 Or just push the button:
 
 [![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)