Update Readme.md

better name explanation
no need to escape exclamation mark with new parser
force parser to err on multi-char char literal

error message not helpful at all, though
added see method

allows vocabularies, dictionaries, words, literals etc. to be printed
in human readable form
renamed mfactor_emitter to mfactor_cortex

will redo emitter to directly inherit from MFactor
show location when trying to redefine word
remove high-level safe access code

Get and set functions are supposed to be safe-checked inside the
interpreter.  Need instructions for activating and deactivating these modes
re-ordered mfactor code

some dependencies were not correct
add some info about boxed data in Readme
bytecode emitter rewrite, word checking fixes

Made the Cortex code emitter a subclass of the main class.  Added
headers to complex inline types.  Generalized ba_start instruction into litc
helper task to print some library dependencies