message: docs: fix typo in dynamic forms page
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diff: @@ -199,7 +199,7 @@ The following figure shows the final form.
  * **Different types of forms and control collection**
  - This tutorial shows how to build a a questionaire, which is just one kind of dynamic form.
  + This tutorial shows how to build a questionaire, which is just one kind of dynamic form.
  The example uses `FormGroup` to collect a set of controls.
  For an example of a different type of dynamic form, see the section [Creating dynamic forms](guide/reactive-forms#creating-dynamic-forms "Create dynamic forms with arrays") in the Reactive Forms guide.
  That example also shows how to use `FormArray` instead of `FormGroup` to collect a set of controls.
  