Add README for Pets workshop with event details and getting started instructions

Author: GeekTrainer

content/README.md

@@ -0,0 +1,12 @@
+# Pets workshop
+
+This repository contains two workshops:
+
+- a [full-day](./full-day/README.md) workshop which covers a full day-in-the-life of a developer using GitHub for their DevOps processes.
+- a [one hour](./1-hour/README.md) workshop focused on GitHub Copilot.
+
+Both workshop are built around a fictional dog shelter, where you are a volunteer helping them build out their website.
+
+## Get started
+
+To get started, you choose the option above based on the event you're attending, or as indicated by your workshop mentor.