docs: update contributing

CONTRIBUTING.md

@@ -19,11 +19,24 @@ When fixing a bug it is fine to submit a pull request right away.
 
 Steps to be performed to submit a pull request:
 
-1. Fork the repository and create your branch from `develop`.
+1. Fork the repository.
-2. If you have fixed a bug or added code that should be tested, add tests.
+2. Clone the repository.
-3. Click `Window > Generals > Test Runner` to test
+3. Checkout `develop` branch.
-4. Commit with a massage based on [Angular Commit Message Conventions](https://gist.github.com/stephenparish/9941e89d80e2bc58a153).
+4. Develop the package.
-5. Fill out the description, link any related issues and submit your pull request.
+5. Test the package with the test runner (`Window > Generals > Test Runner`).
+6. Commit with a message based
+   on [Angular Commit Message Conventions](https://gist.github.com/stephenparish/9941e89d80e2bc58a153) as follows:
+
+    - `fix:` fix a bug
+    - `feat:` new feature
+    - `docs:` changes only in documentation
+    - `style:` changes only in formatting, white-space, etc
+    - `refactor:` changes only in code structure (extract method, rename variable, move method, etc)
+    - `perf:` changes only in code performance
+    - `test:` add or update tests
+    - `chore:` changes to the build process or auxiliary tools and libraries such as documentation generation
+
+7. Create a pull request on GitHub. Fill out the description, link any related issues and submit your pull request.
 
 #### License