suggestion to add to add coga to user need 11

[lseeman]

suggestion to add to user need 11 - version control

Original text: ) Assistive technology users need to be able to read the text with information included about suggested changes (i.e., insertions, deletions or formatting modifications proposed by collaborators).

Suggestion: add that people with cognitive disabilities also need to

• see these changes,
• hide the changes, and
• easily get the latest clean version

[JaninaSajka]

Removed the specific reference to AT and changed 'user' to 'collaborators' to denote that everyone needs this data.