message: docs: place download section in angular forms validation to the top of the page
  This commit partially addresses
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diff: # Form validation
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  -
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  Improve overall data quality by validating user input for accuracy and completeness.
  This page shows how to validate user input in the UI and display useful validation messages
  using both reactive and template-driven forms. It assumes some basic knowledge of the two
  forms modules.
  +<div class="alert is-helpful">
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  + For the sample app that this page describes, see the <live-example></live-example>.
  +
  +</div>
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  <div class="alert is-helpful">
  If you're new to forms, start by reviewing the [Forms](guide/forms) and
  @@ -336,5 +339,3 @@ With reactive forms:
  ```typescript
  new FormControl('', {updateOn: 'blur'});
  ```
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  -**You can run the <live-example></live-example> to see the complete reactive and template-driven example code.**
  