message: readme: expand the goals section
diff: @@ -17,14 +17,16 @@ I) Code quality
  II) Simplicity
  - Interpreter only
  - Provide no support for floating point operations (initially)
  -- Support only Wasm binary encoding as an input (no support for WAT)
  +- Support only WebAssembly binary encoding as an input (no support for WAT)
  III) Conformance
  -- Should pass the official Wasm test suite
  +- Should pass the official WebAssembly test suite
  IV) First class support for determistic applications (*blockchain*)
  -- Support the bigint API
  +- Support an efficient big integer API (256-bit and perhaps 384-bit)
  - Support runtime metering in the interpreter
  +- Support enforcing a call depth bound
  +- Further restrictions of complexity (e.g. number of locals, number of function parameters, number of labels, etc.)
  ## Building and using
  