changes to section_compute-cells

removed extra space before uses
added the before default, lowercase default
added the before cells in 3 places
reformatted options with <option> tag
reformatted lists as variable lists
cleaned up some grammatical errors
cleaned up some capitalization problems

Change-Id: I23e34dad83288164a90995277fcfa1db00b2bf21
Merge "changes to section_compute-cells"