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test/mini_plugin/example/README.md

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+## The Example Folder
+
+This folder must contain a fully working example of the plugin usage. The example must define the `required_plugins`
+block. A pre-defined GitHub Action will run `packer init`, `packer validate`, and `packer build` to test your plugin 
+with the latest version available of Packer.
+
+The folder can contain multiple HCL2 compatible files. The action will execute Packer at this folder level
+running `packer init -upgrade .` and `packer build .`.
+
+If the plugin requires authentication, the configuration should be provided via GitHub Secrets and set as environment
+variables in the [test-plugin-example.yml](/.github/workflows/test-plugin-example.yml) file. Example:
+
+```yml
+  - name: Build
+    working-directory: ${{ github.event.inputs.folder }}
+    run: PACKER_LOG=${{ github.event.inputs.logs }} packer build .
+    env:
+      AUTH_KEY: ${{ secrets.AUTH_KEY }}
+      AUTH_PASSWORD: ${{ secrets.AUTH_PASSWORD }}
+```