Adding CONTRIBUTING.md so that github shows it on issues.

README.md

@@ -16,6 +16,8 @@ Please check the [frequently asked questions](http://xenia.jp/faq/) page before
 asking questions. We've got jobs/lives/etc, so don't expect instant answers.
 Discussing illegal activities will get you banned. No warnings.
 
+**Before contributing code or issues be sure to read [CONTRIBUTING.md](CONTRIBUTING.md).**
+
 ## Status
 
 Buildbot:
@@ -25,7 +27,9 @@ Project tracker:
 [![Stories in Ready](https://badge.waffle.io/benvanik/xenia.svg?label=ready&title=Ready)](http://waffle.io/benvanik/xenia)
 [![Stories in In Progress](https://badge.waffle.io/benvanik/xenia.svg?label=in%20progress&title=In%20Progress)](http://waffle.io/benvanik/xenia)
 
-Some real games run. Most don't. Don't ask if GTA or whatever runs. [Game compatibility list](https://github.com/xenia-project/game-compatibility/issues).
+Some real games run. Most don't. Don't ask if GTA or whatever runs.
+See the [Game compatibility list](https://github.com/xenia-project/game-compatibility/issues)
+for currently tracked games.
 
 ## Disclaimer
 
@@ -42,20 +46,29 @@ Windows 8.1+ with Python 2.7 and [Visual Studio 2015](https://www.visualstudio.c
     > git clone https://github.com/benvanik/xenia.git
     > cd xenia
     > xb setup
+
+    # Pull latest changes, rebase, and update submodules and premake:
+    > xb pull
+
     # Build on command line:
     > xb build
+
     # Run premake and open Visual Studio (run the 'xenia-app' project):
     > xb devenv
+
     # Run premake to update the sln/vcproj's:
     > xb premake
 
+    # Format code to the style guide:
+    > xb format
+
 When fetching updates use `xb pull` to automatically fetch everything and
 run premake for project files/etc.
 
 ## Building
 
-See [building](docs/building.md) for setup and information about the
-`xb` script. When writing code, check the [style guide](docs/style_guide.md)
+See [building.md](building.md) for setup and information about the
+`xb` script. When writing code, check the [style guide](style_guide.md)
 and be sure to run clang-format!
 
 ## Contributors Wanted!
@@ -69,6 +82,7 @@ that there are some major work areas still untouched:
 
 * Help work through missing functionality/bugs in game [compat](https://github.com/benvanik/xenia/issues?labels=compat)
 * Add input drivers for [PS4 controllers](https://github.com/benvanik/xenia/issues/60) (or anything else)
+* Skilled with Linux? A strong contributor is needed to [help with porting](https://github.com/benvanik/xenia/labels/cross%20platform)
 
 See more projects [good for contributors](https://github.com/benvanik/xenia/issues?labels=good+for+contributors&page=1&state=open). It's a good idea to ask on IRC/the bugs before beginning work
 on something.