Added more to roadmap.

Author: neelance

README.md

@@ -4,14 +4,16 @@ GopherJS - A transpiler from Go to JavaScript
 ### What is supported?
 GopherJS is able to turn itself (and all packages it uses) into pure JavaScript code that runs in all major browsers. This suggests a quite good coverage of Go's specification. However, there are some known exceptions listed below and some unknown exceptions that I would love to hear about when you find them.
 
-### Not yet supported
+### Roadmap
 These features are not implemented yet, but on the roadmap:
 
 - implicit panics (division by zero, etc.)
 - exact runtime type assertions for compound types without a name
 - reflection
 - goroutines, channels, select
 - goto
+- output minification
+- source maps
 
 ### Deviations from Go specification
 Some tradeoffs have to be made in order to avoid huge performance impacts. Please get in contact if those are deal breakers for you.