chore(contributing): clean up CONTRIBUTING.md and split out DCO

CONTRIBUTING.md

@@ -1,82 +1,45 @@
 # How to Contribute
 
-CoreOS projects are Apache 2.0 licensed and accept contributions via Github
+CoreOS projects are [Apache 2.0 licensed](LICENSE) and accept contributions via
-pull requests.  This document outlines some of the conventions on commit
+GitHub pull requests.  This document outlines some of the conventions on
-message formatting, contact points for developers and other resources to make
+development workflow, commit message formatting, contact points and other
-getting your contribution accepted.
+resources to make it easier to get your contribution accepted.
 
 # Certificate of Origin
 
 By contributing to this project you agree to the Developer Certificate of
 Origin (DCO). This document was created by the Linux Kernel community and is a
 simple statement that you, as a contributor, have the legal right to make the
-contribution.
+contribution. See the [DCO](DCO) file for details.
-
-```
-Developer Certificate of Origin
-Version 1.1
-
-Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
-660 York Street, Suite 102,
-San Francisco, CA 94110 USA
-
-Everyone is permitted to copy and distribute verbatim copies of this
-license document, but changing it is not allowed.
-
-
-Developer's Certificate of Origin 1.1
-
-By making a contribution to this project, I certify that:
-
-(a) The contribution was created in whole or in part by me and I
-    have the right to submit it under the open source license
-    indicated in the file; or
-
-(b) The contribution is based upon previous work that, to the best
-    of my knowledge, is covered under an appropriate open source
-    license and I have the right under that license to submit that
-    work with modifications, whether created in whole or in part
-    by me, under the same open source license (unless I am
-    permitted to submit under a different license), as indicated
-    in the file; or
-
-(c) The contribution was provided directly to me by some other
-    person who certified (a), (b) or (c) and I have not modified
-    it.
-
-(d) I understand and agree that this project and the contribution
-    are public and that a record of the contribution (including all
-    personal information I submit with it, including my sign-off) is
-    maintained indefinitely and may be redistributed consistent with
-    this project or the open source license(s) involved.
-```
-
 
 # Email and Chat
 
+The project currently uses the general CoreOS email list and IRC channel:
 - Email: [coreos-dev](https://groups.google.com/forum/#!forum/coreos-dev)
 - IRC: #[coreos](irc://irc.freenode.org:6667/#coreos) IRC channel on freenode.org
 
 ## Getting Started
 
 - Fork the repository on GitHub
-- Read the README.md for build instructions
+- Read the [README](README.md) for build and test instructions
+- Play with the project, submit bugs, submit patches!
 
 ## Contribution Flow
 
 This is a rough outline of what a contributor's workflow looks like:
 
-- Create a topic branch from where you want to base your work. This is usually master.
+- Create a topic branch from where you want to base your work (usually master).
 - Make commits of logical units.
-- Make sure your commit messages are in the proper format, see below
+- Make sure your commit messages are in the proper format (see below).
 - Push your changes to a topic branch in your fork of the repository.
-- Submit a pull request
+- Make sure the tests pass, and add any new tests as appropriate.
+- Submit a pull request to the original repository.
 
-Thanks for you contributions!
+Thanks for your contributions!
 
 ### Format of the Commit Message
 
-We follow a rough convention for commit messages borrowed from Angularjs. This
+We follow a rough convention for commit messages borrowed from AngularJS. This
 is an example of a commit:
 
 ```
@@ -86,7 +49,7 @@ is an example of a commit:
     start for debugging.
 ```
 
-To make it more formal it looks something like this:
+The format can be described more formally as follows:
 
 ```
 <type>(<scope>): <subject>
@@ -96,29 +59,29 @@ To make it more formal it looks something like this:
 <footer>
 ```
 
-The first line is the subject and should not be longer than 70 characters, the
+The first line is the subject and should be no longer than 70 characters, the
-second line is always blank and other lines should be wrapped at 80 characters.
+second line is always blank, and other lines should be wrapped at 80 characters.
-This allows the message to be easier to read on github as well as in various
+This allows the message to be easier to read on GitHub as well as in various
 git tools.
 
-### Subject Line
+#### Subject Line
 
-The subject line contains succinct description of the change.
+The subject line contains a succinct description of the change.
 
-### Allowed <type>
+#### Allowed `<type>`s
-- feat (feature)
+- *feat* (feature)
-- fix (bug fix)
+- *fix* (bug fix)
-- docs (documentation)
+- *docs* (documentation)
-- style (formatting, missing semi colons, …)
+- *style* (formatting, missing semi colons, …)
-- refactor
+- *refactor*
-- test (when adding missing tests)
+- *test* (when adding missing tests)
-- chore (maintain)
+- *chore* (maintain)
 
-### Allowed <scope>
+#### Allowed `<scope>`s
 
-Scopes could be anything specifying place of the commit change. For example store, api, etc.
+Scopes can anything specifying the place of the commit change in the code base - 
+for example, "api", "store", etc.
 
-### More Details on Commits
 
-For more details see the [angularjs commit style
+For more details on the commit format, see the [AngularJS commit style
 guide](https://docs.google.com/a/coreos.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit#).

DCO

@@ -0,0 +1,36 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+660 York Street, Suite 102,
+San Francisco, CA 94110 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.