This commit makes a minor change in the wording of the description of the errors2 exercise to avoid potential confusion, changing:
"A player of the game will type in how many items they want to buy, and the `total_cost` function will calculate the total cost of the tokens."
to
"A player of the game will type in how many items they want to buy, and the `total_cost` function will calculate the total cost of the items."
This commit corrects a grammar typo in the hint of the errors1 exercise, changing from:
"`Ok` and `Err` are one of the variants of `Result`,"
to:
"`Ok` and `Err` are the two variants of `Result`,"
Matt Nield