Boostrap3 Motal をBoostrap5 Motalにリファクタリング

Boost3 Motal をBoost5 Motalにリファクタリングする時に
いくつかの注意点があります

- 1.Boost5 MDN リンクを使って、Boost3 の　Mdnリンクを置き換える

```html
  <!-- <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
	<script src="https://cdn.staticfile.net/jquery/2.1.1/jquery.min.js"></script>
	<script src="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> -->

  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
```

- ２.いくつかの属性名前の変更

``` 
data-toggleを data-bs-toggleに変更する
data-targetをdata-bs-targetに変更する
closeをbtn-closeに変更する
data-targetをdata-bs-targetに変更する
data-dismissをdata-bs-dismissに変更する
btn-defaultをbtn-secondary
form-groupをrowに変更する 
control-labelをcolに変更する 
```


Example
```
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Test Bootstrap</title>
  <!-- <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
	<script src="https://cdn.staticfile.net/jquery/2.1.1/jquery.min.js"></script>
	<script src="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> -->

  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>


</head>
<body>
  <div class="container d-flex  flex-column justify-content-center align-items-center">
<h2>Book Managerment System</h2>
<button class="btn btn-primary btn-lg" data-bs-toggle="modal" data-bs-target="#myModal">Add</button>
</div>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
	<div class="modal-dialog">
		<div class="modal-content">
			<div class="modal-header">
				<button type="button" class="btn-close" data-bs-dismiss="modal" aria-hidden="true">
					&times;
				</button>
				<h5 class="modal-title text-center w-100 " id="myModalLabel" >Add New Book</h5>
			</div>
			<div class="modal-body">
				<form class="form-horizontal" role="form">
                    <div class="row mb-4">
                      <label for="BookName" class="col-sm-2 control-label" id = 'name'>Name</label>
                      <div class="col-sm-8">
                        <input type="text" class="form-control" id="BookName">
                      </div>
                    </div>
                    <div class="row mb-4">
                    <label for="BookAuthor" class="col-sm-2 control-label" id = 'author'>Author</label>
                    <div class="col-sm-8">
                      <input type="text" class="form-control" id="BookAuthor" >
                    </div>
                    </div>
                    <div class="row mb-4">
                        <label for="Bookpublisher" class="col-sm-2 control-label" id = 'publisher'>Publisher</label>
                        <div class="col-sm-8">
                          <input type="text" class="form-control" id="Bookpublisher" >
                        </div>
                    </div>
                </form>
			</div>
			<div class="modal-footer">
				<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close
				</button>
				<button type="button" class="btn btn-primary " id = 'submitBtn'>
					Submit
				</button>
			</div>
		</div><!-- /.modal-content -->
	</div><!-- /.modal -->
</div>
</body>
<script src="./js/BookManagerment.js"></script>
</html>
```