Create CONTRIBUTING.md

Author: dinncer

Diff for: CONTRIBUTING.md

@@ -0,0 +1,11 @@
+# Contributing to Laravel Upgrade Helper
+
+Please read the project purpose on the README.md. We improvements will make us happy.
+
+## Requirements
+
+If the project maintainer has any additional requirements, you will find them listed here.
+
+* Document any change in behaviour - Make sure the README.md and any other relevant documentation are kept up-to-date.
+* One pull request per feature - If you want to do more than one thing, send multiple pull requests.
+* Send coherent history - Make sure each individual commit in your pull request is meaningful. If you had to make multiple intermediate commits while developing, please squash them before submitting.