README.markdown in heroku_deploy-0.1.6 vs README.markdown in heroku_deploy-0.1.8

@@ -8,10 +8,14 @@
     sudo gem install heroku_deploy
 
 In environment.rb
     config.gem "heroku_deploy"
 
+or in your Gemfile
+    gem "heroku_deploy"
+    gem "heroku"
+
 In your Rakefile:
     begin
       require 'heroku_deploy'
       HerokuDeploy::Tasks.new(
           :staging_app => "example-app-staging",
@@ -19,11 +23,12 @@
     rescue LoadError
       puts "heroku_deploy (or a dependency) not available. Install it with: gem install heroku_deploy"
     end
 
 ###Setup and Deploy
-heroku_deploy assumes that origin/master is your main development branch.  Once you have that in place, run:
+heroku_deploy assumes that origin/master is your main development branch.  It also assumes your heroku credentials are saved in ~/.heroku/credentials
+Once you have that in place, run:
 
     rake heroku_deploy:setup
 
 This creates two additional branches: staging and production.  These branches hold your deploys.
 It also creates the two heroku apps specified in your Rakefile.
@@ -50,6 +55,9 @@
 To skip the backup when deploying to staging or production run:
 
     rake heroku_deploy:staging backup=false
 
 ###Coming Soon
+* Prompts for credentials if you haven't entered them
+* No need to include gem "heroku" in your Gemfile
+* Better error messages if you're trying to create an existing heroku app
 * Before and after hooks that allow you to arbitrarily execute code before and after deploy