README.md in travis_parallel_sentinel-0.1.4 vs README.md in travis_parallel_sentinel-0.1.5

@@ -1,11 +1,37 @@
 # TravisParallelSentinel
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/travis_parallel_sentinel`. To experiment with that code, run `bin/console` for an interactive prompt.
+Simple parallel build coordination for Travis.
 
-TODO: Delete this and the text above, and describe your gem
+Until https://github.com/travis-ci/travis-ci/issues/929 is resolved, you can use this to coordinate your builds. Install
+the gem, and you can do the following in your build scripts:
 
+    STATUS=$(travis_parallel_sentinel)
+    case $STATUS in
+      ok)
+        echo 'All clear'
+        exit 0
+        ;;
+      deploy)
+        echo 'All builds green'
+        ;;
+      *)
+        echo "Unexpected build status $STATUS"
+        exit 1
+        ;;
+    esac
+    
+    # do your deploy work here
+
+The bundled script will return `ok` for anything but the primary build; for the primary build, it will error out if any
+of the other builds have, and will return `deploy` if all went well. This is meant to run *as part of your tests*, as
+that will cause your build to error out if the deploy fails.
+
+If you want to have the standard Travis behavior, that is, have builds go green even if the deploy step fails, run the
+above in your after\_X step, but do `STATUS=$(travis_parallel_sentinel include)` to include the primary build status in
+the success assessment.
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
@@ -18,22 +44,5 @@
 
 Or install it yourself as:
 
     $ gem install travis_parallel_sentinel
 
-## Usage
-
-TODO: Write usage instructions here
-
-## Development
-
-After checking out the repo, run `bin/setup` to install dependencies. Then, run `bin/console` for an interactive prompt that will allow you to experiment.
-
-To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release` to create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
-
-## Contributing
-
-1. Fork it ( https://github.com/[my-github-username]/travis_parallel_sentinel/fork )
-2. Create your feature branch (`git checkout -b my-new-feature`)
-3. Commit your changes (`git commit -am 'Add some feature'`)
-4. Push to the branch (`git push origin my-new-feature`)
-5. Create a new Pull Request