Added labels to all the primary actor roles
Marking UI: Moved description to last place to fit accpeted format
Added label link to UI test suite section

added proper label to UI test suite section
Add referencing in Activity create/modify UI

Added labels and referencing so Activity Creation/Modification in UI so
it references appropriate section. Also reordered to split up inputs and
outputs.
Added two missing functional requirement sections

Added two missing functional requirements.
Fixed Spec pdf compilation bug
Student/TA Group Management finally added

Hopefully it doesn't break anything.
Minor updates to login interface

Updated login interface section to proper formatting.
Modified UI and references
change to lower case M
Spruced up the Spec file

- Reduced line lengths to ~80 chars
- Changed `Assignment(s)` -> `Activity(ies)`
- Altered a few section names
Tweaked Non-functional Requirements
Rewrote the System Admin UI mockup

Changed the System Admin UI mockup and simplified it to the Create/Modify Account mockup. I also fixed a small typo somewhere
Final tweaks for style - submitting

- Made the margins smaller
- Fixed wording in a few places.