Update pipeline editor drawer content

Problem

As we add a basic "getting started" template to the pipeline editor, the drawer content needs updating to reflect the easiest steps to getting started with CI.

Proposal

Adjust the "run your first pipeline" section in the drawer to reflect the optimal steps to running the first pipeline.

This template creates a simple test pipeline. To use it:

1. Commit the file to your repository. The pipeline then runs automatically.
2. The pipeline status is at the top of the page.
3. Select the pipeline ID to view the full details about your first pipeline run.