message: MINOR: Fix typos
diff: @@ -21,7 +21,7 @@ Returns `true` if any sub expression evaluates to `true`.
  ## none
  -Returns `true` if no sub expressions evaluate to `true`.
  +Returns `true` if no sub expression evaluates to `true`.
  ```javascript
  ["none", expr...]
  @@ -247,7 +247,7 @@ Creates interpolation.
  stepN, valueN,
  ]
  -["discrete", ["linear"], ["zoom"],
  +["interpolate", ["discrete"], ["zoom"],
  step1, value1,
  ...
  stepN, valueN,
  