tutorials now from youtube instead of google drive, changing some notes to better reflect severity

Merge pull request #11 from rnadigital/10-documentation_tutorial_overhaul

modifying quickstart page to add more information to each step

refactoring quickstart, adding tutorial videos on simple quickstart, adding sample data .csv

modifying quickstart, embedding video

adding datasources and tasks, starting apps

Scaffhold for models, starting datasources

Adding content to 'Models' page

Detailed Agents documentation

initial commit to overhaul documentation

fixing default page and fixing some broken links

fixing remaining pages

Merge branch 'main' of github.com:rnadigital/agentcloud-docs

adding changes to routes

Delete api-reference directory