README.md in request-tracer-0.6.4 vs README.md in request-tracer-0.6.5

@@ -13,10 +13,19 @@
 ------------
 Request Tracer integrates with various other gems in order to transparently
 read incoming trace headers and add trace headers to outgoing service calls.
 A good introduction into Zipkin terminology [can be found here](http://www.slideshare.net/johanoskarsson/zipkin-strangeloop/25).
 
+Spawning traces
+---------------
+If you want to spawn from an existing trace or create a fresh one if there is no current trace, you can use
+```ruby
+RequestTracer::Trace.record do
+  # Some code that might contain outgoing calls etc
+end
+```
+
 Reading trace headers
 ---------------------
 In your `config.ru` add the RackHandler middleware like this:
 ```ruby
 require 'request_tracer'
@@ -31,5 +40,14 @@
 Somewhere in your code (e.g. in an initializer under `config/initializers/request-tracing.rb`)
 add the following call:
 ```ruby
 RequestTracer.integrate_with(:rest_client)
 ```
+
+Google Dapper Paper
+-------------------
+http://static.googleusercontent.com/media/research.google.com/en/pubs/archive/36356.pdf
+
+
+Scala Tests
+-----------
+https://github.com/openzipkin/zipkin/blob/master/zipkin-common/src/test/scala/com/twitter/zipkin/common/SpanTest.scala