docs/DevelopmentGuide.md in ddtrace-0.34.2 vs docs/DevelopmentGuide.md in ddtrace-0.35.0

@@ -181,10 +181,10 @@
 
 Then pass an adapter instance to the tracer configuration:
 
 ```ruby
 Datadog.configure do |c|
-  c.tracer transport_options: proc { |t|
+  c.tracer.transport_options = proc { |t|
     # By name
     t.adapter :custom
 
     # By instance
     custom_adapter = CustomAdapter.new