[frankfrankfrank]

The english copy of some of the learning examples is rough and complex, which takes away from the lessons.

An example from 21/55:

"To express at least a certain number of occurrences of a character, we write the end of the character at least how many times we want it to occur, with a comma , at the end, and inside curly braces {n, }. For example, indicate that the following letter e can occur at least 3 time."

It should read something like:

"To express a match of a minimum number of character occurrences, we use a comma after the number of occurrences, within the curly braces {n, }. In the following, try building a regex to match the letter e occurring a minimum of 3 times sequentially."