Add subtraction documentation
Updated Sources and Sinks (markdown)
Add sum_NUMTYPE documentation
Add information about quotation
Add one pure sink
Add clamp pure function
Add tuple pure sink
Update ifnz
Add initial entry about the pure sink
dunno if this is more accurate?
thanks to Nil's code and Adam's improvements
Fix what BTM stands for
Add entry for BTM
Add entries for != and ==
didn't work
just more to try
just temporarily placing this here to check whether the solution will work
Replace location of computation by system
Update MM2-Example: testing - direct to tests in CTL example (markdown)