minor #1060 Updates ReviewRequest Create method to return type Array …

…(ejntaylor)

This PR was merged into the 3.4.x-dev branch.

Discussion
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This query returns an array and not a string. I have updated to reflect this.

Specific docs link added in docblock too.

Commits
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8ab22f6 Updates ReviewRequest Create with type Array

lib/Github/Api/PullRequest/ReviewRequest.php

@@ -39,15 +39,15 @@ public function all($username, $repository, $pullRequest, array $params = [])
     }
 
     /**
-     * @link https://developer.github.com/v3/pulls/review_requests/#create-a-review-request
+     * @link https://docs.github.com/en/rest/reference/pulls#request-reviewers-for-a-pull-request
      *
      * @param string $username
      * @param string $repository
      * @param int    $pullRequest
      * @param array  $reviewers
      * @param array  $teamReviewers
      *
-     * @return string
+     * @return array
      */
     public function create($username, $repository, $pullRequest, array $reviewers = [], array $teamReviewers = [])
     {