Usage notes

Some random usage notes.

• A special character in the answer field is "/". It is used to separate different possible answers. For example, if you have specified "house / apartment" as the answer to a question, then MacVocTrain accepts "house", "apartment", "house / apartment" and "apartment / house" as a correct answer. If not all possible answers are given in the revision, then MacVocTrain still displays all correct answers before continuing with the next question.