📚 Documentation: Contributing and Self-host Documentations are Outdated

[Dev-Aweb]

💭 Description

When I tried adding a new provider to Appwrite, I realized that most of the documentation was outdated.

For example: In Adding OAuth 2 Provider Guide there were some outdated stuff such as Adding Provider Logo where it tells to add Logo as PNG in public/images/users. However, users does not exist in public/images. The documentation lacks how to test the provider in, and it doesn't show how to add the UI of the provider to the console, nor does it show how to add the new provider to the OAuthProvider package in JS SDK (I figured the SDK part out)

Please check all of the Contributing and self-host Documentations and update them, thank you.

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

[stnguyen90]

Sorry, this is actually fine in the appwrite repo as it's regarding the tutorials in the appwrite repo.