Document admin process for launching a new tutorial

[terichadbourne]

Need to document steps a maintainer/admin needs to do or coordinate each time a PR for a new tutorial is submitted. Would including things like:

In the tutorial PR, before merging:

• Copy edit for grammar and clarity
• Technical review from an SME for accuracy
• Create a social tile for new tutorial
• Determine whether a new project logo is needed
• Determine whether a new course is needed and add if required, including description, SEO description, and other tutorials to include
• Determine which existing courses we to add this tutorial to (should almost always be in featured at launch)
• Determine for which other courses this tutorial should be added to the resources page
• Review suggested resources being linked to, ensure they're relevant and appropriately labelled, add more as needed, including any existing ProtoSchool tutorials that make sense as a follow-on
• Condense images

Outside of this PR:

• find places on relevant project websites, GH repos, docs, etc. where it makes sense to link to this tutorial
• draft a blog post for most appropriate project blog
• draft an email announcement in Mailchimp
• schedule social media posts including things like:
  • we have a new tutorial on x coming soon, sign up for the newsletter to be the first to know when it's published
  • announcement linking to blog post
  • announcement linking to new tutorial
  • announcement highlighting course the new tutorial is contained in
• get relevant projects to retweet
• update workshop submission form to include new tutorial

@zebateira please feel free to edit the list above to add more detail or additional suggestions

[zebateira]

Looking good! Nothing to add 💅