add certificate for complesion

complete.html

@@ -13,9 +13,12 @@
 	<div id="content">
 		<p id="congrats"></p>
 		<p>Return to <a id="repo">repo</a> or <a href="./">start</a>.</p>
+        <p>download <a id="certificate">certificate</a> of completion</p>
 	</div>
 
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
+    <script src='build/pdfmake.min.js'></script>
+ 	<script src='build/vfs_fonts.js'></script>
 	<script src="./js/complete.js"></script>
 </body>
 </html>

js/complete.js

@@ -12,3 +12,7 @@ $("#repo").attr("href", `./repo.html#${repo}`);
 $("#back").click(() => {
 	window.location.href = `./type.html#${hash}`;
 });
+
+$("#certificate").click(() => {
+    var docDefinition = { content: 'Certificate for complesion\nCongratulation! you completed!!\n https://github.com/${repoName}/${file} \n Powerd by https://github.com/daisukeokaoss/type'  };
+});