Adding update to README

README.rdoc

@@ -34,6 +34,10 @@ The token can be found on your personal profile page in Pivotal Tracker.
 
 The requested_by field should be the name of your project stakeholder exactly as it appears in tracker.
 
+  ssl: true
+
+If your tracker project has "Use HTTPS" enabled then you'll want to add the above line to your config file.
+
 == Usage
 
 Create a stories.slurper file and compose your stories in the slurper story format. In your working directory use the slurp command to import your stories from the stories.slurper file into Pivotal Tracker. Slurper looks for a stories.slurper file in your current directory by default, however, you can provide an alternate story source file if necessary.