README.md in flamegraph-0.0.1 vs README.md in flamegraph-0.0.2

@@ -18,9 +18,36 @@
 
 ## Usage
 
 Note: Only supported on Ruby 2.0. Gathering stack traces is too slow on earlier versions of Ruby or JRuby
 
+```ruby
+
+require 'flamegraph'
+html = Flamegraph.generate do
+  # your work here
+end
+
+# or
+
+
+Flamegraph.generate(filename) do
+  # your work here
+end
+
+```
+
+## Demo
+
+Demo of: https://github.com/SamSaffron/flamegraph/blob/master/demo/demo.rb
+
+http://samsaffron.github.io/flamegraph/demo.html
+
+Demo of Discourse startup using: https://github.com/SamSaffron/flamegraph/blob/master/demo/rails_startup.rb
+
+**WARNING VERY SLOW, MAY CRASH BROWSER TAB**
+http://samsaffron.github.io/flamegraph/rails-startup.html
+
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)