Contribution guidelines

CONTRIBUTING.md

@@ -0,0 +1,12 @@
+We are always looking for the quality contributions and will be happy to accept your Pull Requests as long as those adhere to some basic rules:
+
+* Please make sure that your contribution fits well in the project's context:
+  * we are aiming at rebuilding boostrap directives in pure AngularJS, without any dependencies on any external JavaScript library;
+  * the only dependency should be boostrap CSS and its markup structure;
+  * directives should be html-agnostic as much as possible which in practice means:
+    * templates should be referred to using the `templateUrl` property
+    * it should be easy to change a default template to a custom one
+    * directives shouldn't manipulate DOM structure directly (when possible)
+* Please assure that you are submitting quality code, specifically make sure that:
+  * your directive has accompanying tests and all the tests are passing; don't hesitate to contact us ([email protected]) if you ned any help with unit testing
+  * your PR doesn't break the build; check the Travis-CI build status after opening a PR and push corrective commits if anything goes wrong

README.md

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 * Run test: `grunt test-run`
 
 ### Before commit
-* Build the whole project: `grunt` - this will run `lint`, `test`, and `concat` targets
+* Build the whole project: `grunt` - this will run `lint`, `test`, and `concat` targets
+
+## Contributing to the project
+
+ We are always looking for the quality contributions! Please check the CONTRIBUTING.md for the contribution guidelines.