Fix GitHub docs URL for get repository API (#2600)

Author: marcelosousa

github/repos.go

@@ -495,7 +495,7 @@ func (s *RepositoriesService) CreateFromTemplate(ctx context.Context, templateOw
 
 // Get fetches a repository.
 //
-// GitHub API docs: https://docs.github.com/en/rest/repos/repos#update-a-repository
+// GitHub API docs: https://docs.github.com/en/rest/repos/repos#get-a-repository
 func (s *RepositoriesService) Get(ctx context.Context, owner, repo string) (*Repository, *Response, error) {
 	u := fmt.Sprintf("repos/%v/%v", owner, repo)
 	req, err := s.client.NewRequest("GET", u, nil)