Simplified Buzz sample app

Added README for Buzz sample app

examples/README

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+# Buzz Ruby Sample #
+This is a simple starter project written in Ruby which provides a minimal
+example of Buzz integration within a Sinatra web application.
+
+Once you've run the starter project and played with the features it provides,
+this starter project provides a great place to start your experimentation into
+the API.
+
+## Prerequisites ##
+Please make sure that all of these are installed before you try to run the
+sample.
+
+- Ruby 1.8.7+
+- Ruby Gems 1.3.7+
+- Are you on a Mac? If so, be sure you have XCode 3.2+
+- A few gems (run 'sudo gem install <gem name>' to install)
+-- sinatra
+-- httpadapter
+-- extlib
+-- dm-sqlite-adapter
+-- google-api-ruby-client
+
+## Setup Authentication ##
+
+This API uses OAuth 2.0. Learn more about Google APIs and OAuth 2.0 here:
+http://code.google.com/apis/accounts/docs/OAuth2.html
+
+Or, if you'd like to dive right in, follow these steps.
+ - Visit https://code.google.com/apis/console/ to register your application.
+ - From the "Project Home" screen, activate access to "Buzz API".
+ - Click on "API Access" in the left column
+ - Click the button labeled "Create an OAuth2 client ID"
+ - Give your application a name and click "Next"
+ - Select "Web Application" as the "Application type"
+ - Under "Your Site or Hostname" select http:// as the protocol and enter
+   "localhost" for the domain name
+ - click "Create client ID"
+
+Edit the buzz.rb file and enter the values for the following properties that 
+you retrieved from the API Console:
+
+ - oauth_client_id
+ - oauth_client_secret
+
+Or, include them in the command line as the first two arguments.
+
+## Running the Sample ##
+
+I'm assuming you've checked out the code and are reading this from a local
+directory. If not check out the code to a local directory.
+
+1. Start up the embedded Sinatra web server
+
+  $ ruby buzz.rb
+
+2. Open your web browser and see your activities! Go to http://localhost:4567/
+
+3. Be inspired and start hacking an amazing new web app!