docs: update contribution doc

contributing.md

@@ -1,15 +1,21 @@
-Contributions are welcome!
+# Contributions are welcome
 
 The project adheres to [Semantic Versioning](https://semver.org) and [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/).
 This repo uses [Earthly](https://earthly.dev/get-earthly).
 
-To contribute please:
-- Fork the repository
-- Create a feature branch
-- Submit a [pull request](https://help.github.com/articles/using-pull-requests)
+There are two ways you can become a contributor:
+
+1. Request to become a collaborator, and then you can just open pull requests against the repository without forking it.
+2. Follow these steps
+    - Fork the repository
+    - Create a feature branch
+    - Set your docker credentials on your fork using the following secret names: `$DOCKER_USER` and `$DOCKER_PASS`
+    - Submit a [pull request](https://help.github.com/articles/using-pull-requests)
+
+## Test & Linter
 
-### Test & Linter
 Prior to submitting a [pull request](https://help.github.com/articles/using-pull-requests), please run:
+
 ```bash
 earthly +test
 ```

readme.md

@@ -212,13 +212,16 @@ Contributions are welcome!
 The project adheres to [Semantic Versioning](https://semver.org) and [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/).
 This repo uses [Earthly](https://earthly.dev/get-earthly).
 
-To contribute please:
+There are two ways you can become a contributor:
 
-- Fork the repository
-- Create a feature branch
-- Submit a [pull request](https://help.github.com/articles/using-pull-requests)
+1. Request to become a collaborator, and then you can just open pull requests against the repository without forking it.
+2. Follow these steps
+  - Fork the repository
+  - Create a feature branch
+  - Set your docker credentials on your fork using the following secret names: `$DOCKER_USER` and `$DOCKER_PASS`
+  - Submit a [pull request](https://help.github.com/articles/using-pull-requests)
 
-#### Test & Linter
+## Test & Linter
 
 Prior to submitting a [pull request](https://help.github.com/articles/using-pull-requests), please run: