several typos have been corrected

Together with some typos, one of the questions at lesson 4/4.7 contains a wrong answer i.e.:

Question 2
Question:TRUE or FALSE: When photographing a breaking news event, you may not have time initially to edit your images. Post one or two and then replace them later with better images.
Answer 1:TRUE
Answer 2:FALSE
Correct Answer:2 --> must be 1 according to lessons/en/4/4.7/Lesson.txt:

"The editing techniques outlined above assumes the luxury of time to edit. With some breaking news events or last-minute deadline assignments, you may have to edit on the fly. Meaning, make a quick selection and post the image(s) on the spot. You can always replace these images later with a more carefully selected and processed image."