feat(doc): create yield farming tutorial

[Ginowine]

Description of change

This PR creates a basic yield farming tutorial for the wiki.

Links to any relevant issues

fixes #1661

Type of change

Choose a type of change, and delete any options that are not relevant.

• Enhancement (a non-breaking change which adds functionality)

Change checklist

Tick the boxes that are relevant to your changes, and delete any items that are not.

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own changes
• I have made sure that added/changed links still work
• I have commented my code, particularly in hard-to-understand areas

[github-actions]

This pull request has been deployed to Vercel.

Latest commit: 010985e

✅ Preview: https://iota-wiki-4dl8ml2os-iota1.vercel.app

[lucas-tortora]

Nice content. Just a few style-related comments. Please make sure to import the code from a repo rather than adding it to the md file.