feat: generate contributing.md [closes #36]

resources/CONTRIBUTING.md.twig

@@ -0,0 +1,61 @@
+## How to contribute
+
+### Before you start
+
+<!-- This section contains conventions/standards contributors must follow -->
+<!-- For example: Commit messages should follow angular standard -->
+
+### Setting up
+
+You may need to fork this project in [GitHub](https://github.com/{{username}}/{{project}}).
+
+```sh
+git clone git@github.com:{{username}}/{{project}}.git
+
+# OR if you have a fork
+# git clone git@github.com:<your_github_handle>/{{project}}.git
+
+cd {{project}}
+
+# Create a new branch
+git checkout -b $branch_name
+
+# Install deps
+composer install -o
+```
+
+### Moving forward
+
+```sh
+# Open {{project}} in IDE
+subl {{project}}
+
+# ... and do the needful
+
+# Optionally run the lint
+for P in src tests; do find $P -type f -name '*.php' -exec php -l {} \;; done
+
+# ... and phpcs fixer or stuffs like that!
+
+# Run tests
+vendor/bin/phpunit --coverage-text
+```
+
+### Finalizing
+
+Everything looking good?
+
+```sh
+# Commit your stuffs
+git add $file ...$files
+git commit -m "..."
+
+# Push 'em
+git push origin HEAD
+```
+
+Now goto [GitHub](https://github.com/{{username}}/{{project}}/compare?expand=1), select your branch and create PR.
+
+### Getting PR merged
+
+You have to wait. You have to address change requests.