message: Clarify that lookup table values are the bytecode in the example
diff: @@ -27,7 +27,8 @@ These goals support 5 major use-cases:
  * allow circuits to use low-cost branching and other familiar programming
  primitives
  - this depends on the development of a bytecode interpreter on top of the
  - lookup-table primitives.
  + lookup-table primitives, where the values in the table represent the
  + bytecode of the instructions.
  * allow circuits to load and execute some 'user provided' bytecode
  - e.g. to run a small bytecode program provided in a transaction at
  block-production time.
  