feat: Add a contributing guide

[BekahHW]

Type of feature

🍕 Feature

Current behavior

There's no contributing guide.

Suggested solution

Since we've had some great contributions on this course and excitement around continued contributions, it's important to have a contributing guide specific to this repo. I'm thinking specifically about issue #43, we could have better supported our contributor by ensuring they knew more.

We link to the main contributing guide from the docs, but we should add specifics for this repo:

1. how to add a new section, including conventions for numbering,
2. the use of markdown,
3. the need to add new sections to the sidebar.
4. how to run the project locally. I suggest two methods: using the docsify CLI or using VS Code Go Live feature.
5. how to add translations

So I would suggest adding a contributing.md with a link to https://docs.opensauced.pizza/contributing/introduction-to-contributing/ followed by the specifics

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

Contributing Docs

• [X] I agree to follow this project's Contribution Docs

[Lymah123]

Hi, @BekahHW. Can I work on this issue?

[BekahHW]

It's all you @Oguntunjiharlimatodunola!

[Lymah123]

Alright! Thank you @BekahHW .

[Lymah123]

@BekahHW , check the screenshot. Am I on the track?

[Lymah123]

@CBID2 , this is the repo issue. I will mention you in the PR as well.