fix: pseudocode lesson updates - p1

[lwasser]

Ok - i rewrote the pseudocode lesson!! this is part 1 of it.

In the first section, I had them think through processing some code and the basic steps, but there are no functions yet.

The next have could be about

1. writing small functions that do one thing well to clean the data
2. adding multiple files to the workflow (we can use the data in activity-1/data/ *.json (there are two json files there that are smaller-ish)

[lwasser]

Ok this is in a good enough state i think for an intro to pseudocode. Id still like to flesh it out more and i left a TODO where i started to do so. i'll open an issue about it

[lwasser]

Next steps for the pseudocode lesson:

• flesh out the pseudocode further - have them turn a few steps into functions
• Potentially??? have them add multiple files which will make them think more about functions and processing steps