Typos and errors in control flow exercises

[gfinol]

I found a typo in control flow exercises and an error.

Typo:

Indentation is not correct.

Error:
The following code that is requiered to transform to pattern match:

Fails the following test required for the solution:

Note the === "A" that should be === "a".

Corrected in https://share.unison-lang.org/@gfinol/code/latest/namespaces/public/prs/controlFlowTypos