I would recommend instead of using the questionnaire to have a Google docs that patrons or everyone can edit, and you let them post all the typos there. Then everyone can see what has been suggested yet, and you have many people correcting each a few things.
I think that would help. And you can create a new page per chapter on the Google doc to make it even more accessible.
I know the English you use has issues, but you can still get the emotions across exceptionally well, so congrats to that already!