fix commenting

Author: quinnthomson

slackbot/settings.py

@@ -6,10 +6,12 @@
     'slackbot.plugins',
 ]
 
-# Raises a KeyError if SLACK_TOKEN
+
 try:
+    # Raises a KeyError if SLACK_TOKEN environment variable is missing
     API_TOKEN = os.environ['SLACK_TOKEN']
 except:
+    # Alternatively, place slack token in the source code
     # API_TOKEN = '###token###'
     print 'SLACK_TOKEN missing'