docs: detail different endpoints

[LeoDog896]

Description

webrtc-streamer is lacking good information for their API endpoints.

Related Issue

As detailed by #555, the JS files provided are meant as examples to make your own implementation, but when trying to use it in different languages it gets confusing.

Motivation and Context

I do aim to improve documentation by detailing endpoints, but I am also furthermore confused about some endpoints.

I've begun with some, and I think it would be great to detail more, as well as how to implement your own webrtc-streamer client.

Types of changes

• [x] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)