message: Update step1_lexing.js
diff: @@ -11,10 +11,8 @@ const createToken = chevrotain.createToken
  // the vocabulary will be exported and used in the Parser definition.
  const tokenVocabulary = {}
  -// createToken is used to create a Token type class
  +// createToken is used to create a TokenType
  // The Lexer's output will contain an array of token Objects created by metadata
  -// on these "constructors". Note that the Token "instances" are not proper class instances
  -// So use chevrotain.tokenMatcher instead of "instanceof" when matching
  const Identifier = createToken({ name: "Identifier", pattern: /[a-zA-Z]\w*/ })
  // We specify the "longer_alt" property to resolve keywords vs identifiers ambiguity.
  