Tutorials for Spring-Summer 2021

[sbrunswi]

Is your feature request related to a problem? Please describe The tutorial material needs to be finalized for Spring 2021 - Tutorial #3 and #4 and #5 in particular - Most of it is done but #3 needs some rework. Also, all markdown files need to be reviewed again for broken links.

Describe the solution you'd like Clear, well-written tutorials that are meeting the expectations of an "intermediate" programmer! Currently, tutorials #2 and #3 really could be improved.

Describe alternatives you've considered NA

Additional context I think the R tutorial for #2 gives some good guidance on the depth of the notebook.

[harshpavuluri]

• [x] MD check for Tutorial 1
• [ ] MD check for Tutorial 2 (Need to update the schema link)
• [ ] MD check for Tutorial 3 (Update BigQuery link, bug here)
• [x] MD check for Tutorial 4