Revise the Ruby History Intro
Revised Instructions & Interpreters
Revising variables section
Reordering to demote Ruby from a File
WIP revising objects/attributes/methods
Let's do Strings before Objects
Revising Strings section
Reordering numbers and symbols
Correct String header levels
Revising Symbols to come before numbers
First draft of a section about blocks
Revise terminal and editor tutorial
Writing about Arrays