If you understand technical details and have the linguistic ability to convey those ideas to the end user in a simple and lucid style, then the Ubuntu Documentation Team needs your help in the following areas :
reporting typos in current documentation (manuals, howtos, Help, release info.),
proofreading current and new documentation,
reading and summarizing feedback on documentation,
advising on formatting and publication,
contributing specific sections to documents,
working with a team on specific documents,
overseeing the work on a specific document,