Here are some ideas to get you started:
🙋♀️ A short introduction - what is your organization all about?
🌈 Contribution guidelines - how can the community get involved?
👩💻 Useful resources - where can the community find your docs? Is there anything else the community should know?
🍿 Fun facts - what does your team eat for breakfast?
🧙 Remember, you can do mighty things with the power of Markdown
