CONTRIBUTING.md in active_shipping-1.0.0.pre1 vs CONTRIBUTING.md in active_shipping-1.0.0.pre2

@@ -1,32 +1,45 @@
 # Contributing to ActiveShipping
 
-We welcome fixes and additions to this project. Please use clean, concise code that follows Ruby community standards. For example:
+We welcome fixes and additions to this project. Fork this project, make your changes and submit a pull request!
 
-* Be consistent
-* Don't use too much white space
-** Use 2 space indent, no tabs.
-** No spaces after (, [ and before ],)
-* Nor too little
-** Use spaces around operators and after commas, colons and semicolons
-** Indent when as deep as case
-* Write lucid code in lieu of adding comments
+### Code style
 
-## Contributors
+Please use clean, concise code that follows Ruby community standards. For example:
 
-* James MacAulay (<http://jmacaulay.net>)
-* Tobias Luetke (<http://blog.leetsoft.com>)
-* Cody Fauser (<http://codyfauser.com>)
-* Jimmy Baker (<http://jimmyville.com/>)
-* William Lang (<http://williamlang.net/>)
-* Cameron Fowler
-* Christopher Saunders (<http://christophersaunders.ca>)
-* Denis Odorcic
-* Dennis O'Connor
-* Dennis Theisen
-* Edward Ocampo-Gooding
-* Isaac Kearse
-* John Duff
-* Nigel Ramsay
-* Philip Arndt
-* Vikram Oberoi
-* Willem van Bergen
+- Be consistent
+- Don't use too much white space
+  - Use 2 space indent, no tabs.
+  - No spaces after (, [ and before ],)
+- Nor too little
+  - Use spaces around operators and after commas, colons and semicolons
+  - Indent when as deep as case
+- Write lucid code in lieu of adding comments
+
+### Pull request guidelines
+
+- Add unit tests, and remote tests to make sure we won't introduce regressions to your code later on.
+- Make sure CI passes for all Ruby versions and dependency versions we support.
+- XML handling: use `REXML` for parsing XML, and `builder` to generate it.
+- JSON: use the JSON module that is included in Rubys standard ibrary
+- HTTP: use `ActiveUtils`'s `PostsData`.
+- Do not add new gem dependencies.
+
+### Contributors
+
+- James MacAulay (<http://jmacaulay.net>)
+- Tobias Luetke (<http://blog.leetsoft.com>)
+- Cody Fauser (<http://codyfauser.com>)
+- Jimmy Baker (<http://jimmyville.com/>)
+- William Lang (<http://williamlang.net/>)
+- Cameron Fowler
+- Christopher Saunders (<http://christophersaunders.ca>)
+- Denis Odorcic
+- Dennis O'Connor
+- Dennis Theisen
+- Edward Ocampo-Gooding
+- Isaac Kearse
+- John Duff
+- Nigel Ramsay
+- Philip Arndt
+- Vikram Oberoi
+- Willem van Bergen