reference: revise keywords
reference: export -> shared
reference: annotations
reference: Part of #190
reference: Part of #190
reference: Link from is operator to if(is)
reference: Link from is operator to if(is) and case(is)
reference: Part of #190
reference: Add a page about type abbreviations
reference ** is now ^, and defined ito Exponentiable
reference: doc the `then` and `else` operators
reference: revise content on integer literals. That was waaay out of date!
reference: change := to = and give a bit more explanation about = as the assignment operator of variable attributes and = in the specification statement
reference: character literals
reference: String literal
reference: String templates
reference: String literal again (fixup)
reference: Fat arrow
reference: Pull type aliases out into their own page
reference: fix for int literal format grouping