feat: add section for Regional Pizza

[CBID2]

Description

This PR adds a new section called "Regional Pizza" to the repository. The aim is to help people who are very new to the open source community to feel comfortable with contributing.

What type of PR is this? (check all applicable)

• [X] 🍕 Feature
• [ ] 🐛 Bug Fix
• [ ] 📝 Documentation Update
• [ ] 🎨 Style
• [ ] 🧑‍💻 Code Refactor
• [ ] 🔥 Performance Improvements
• [ ] ✅ Test
• [ ] 🤖 Build
• [ ] 🔁 CI
• [ ] 📦 Chore (Release)
• [ ] ⏩ Revert

Related Tickets & Documents

Closes #17

Mobile & Desktop Screenshots/Recordings

Added tests?

• [ ] 👍 yes
• [X] 🙅 no, because they aren't needed
• [ ] 🙋 no, because I need help

Added to documentation?

• [X] 📜 README.md
• [ ] 📓 docs.opensauced.pizza
• [ ] 🍕 dev.to/opensauced
• [ ] 📕 storybook
• [ ] 🙅 no documentation needed

[optional] Are there any post-deployment tasks we need to perform?

[optional] What gif best describes this PR or how it makes you feel?

[CBID2]

Hey @BekahHW. I made some changes to my PR, such as renaming the pizza-facts.md file pizza-facts-and-triva.md. As far as simplifying the section in the regional-pizza.md file, I'm thinking would could do something like this:

U.S.

Europe

Africa

Asia

Breaking each section into countries would fulfill your goal to make things less U.S.-centric.

[BekahHW]

@CBID2 Thanks for taking this on!