Some updates to CONTRIBUTING.md

CONTRIBUTING.md

@@ -16,9 +16,9 @@ Hi! Thanks for checking out Julia. If you have questions or problems, the [Julia
 
 The Julia team uses [GitHub issues](https://github.com/JuliaLang/julia/issues) to track and discuss problems, feature requests, and pull requests.
 
-You can make pull requests for incomplete features to get code review, in which case we have a convention of prefixing the pull request title with "RFC:" to indicate that the work is incomplete so it doesn't accidentally get merged into the master branch before it's ready.
+You can make pull requests for incomplete features to get code review. The convention is to prefix the pull request title with "WIP:" or "RFC:" as appropriate to indicate that the work is incomplete, so that it is not accidentally merged.
 
-Before submitting, make sure that all tests pass by running `make testall`. Even better, add your own tests for your change or feature to the test files in `test/`. If your contribution includes changes to Makefiles or external dependencies, make sure you can build Julia from a clean tree using `git clean -fdx` or equivalent (be careful – this command will delete any files lying around that aren't checked into git).
+Before submitting, make sure that all tests pass by running `make testall`. Add your own tests for the new functionality in `test/`. If your contribution includes changes to Makefiles or external dependencies, make sure you can build Julia from a clean tree using `git clean -fdx` or equivalent (be careful – this command will delete any files lying around that aren't checked into git). Make sure that [Travis](http:https://www.travis-ci.org) greenlights the pull request with a `Good to merge` message.
 
 *By contributing code to Julia, you are agreeing to release it under the [MIT License](https://github.com/JuliaLang/julia/tree/master/LICENSE.md).*
 
@@ -29,9 +29,14 @@ While getting familiar with Julia, remember to check out [the docs](http:https://docs.
 ## Resources
 
 * Julia
- - [Julia](http:https://julialang.org)
- - [Julia Manual and Library Guide](http:https://docs.julialang.org/en/latest/)
- - [Julia dev list](https://groups.google.com/forum/?fromgroups#!forum/julia-dev)
+ - **Homepage:** <http:https://julialang.org>
+ - **Mailing lists:** <http:https://julialang.org/mailing_lists>
+ - **IRC:** <http:https://webchat.freenode.net/?channels=julia>
+ - **Source code:** <https://github.com/JuliaLang/julia>
+ - **Git clone URL:** <git:https://github.com/JuliaLang/julia.git>
+ - **Documentation:** <http:https://julialang.org/manual/>
+* Design of Julia
+ - [Julia: A Fast Dynamic Language for Technical Computing](http:https://julialang.org/images/julia-dynamic-2012-tr.pdf)
 * Working with Types
  - [Some Type Patterns](https://github.com/JuliaLang/julia/wiki/Code-Patterns)
  - [The Type Hierarchy](https://github.com/JuliaLang/julia/wiki/Types-Hierarchy)