message: docs(decision-tree-widget): fix the type of `merge` operator
diff: @@ -313,7 +313,7 @@ children:
  - label: race
  - label: I want to output the values from either of them
  children:
  - - label: Observable.merge
  + - label: merge
  - label: I want to output a value computed from values of the source Observables
  children:
  - label: using the latest value of each source whenever any source emits
  