add tutorial to options page

options.html

@@ -8,10 +8,12 @@
 </head>
 <body>
 <div class=panel>
-<form name=optform>
+<p>View the tutorial <a href="https://github.com/wareya/nazeka/blob/master/tutorial.md">here!</a></p>
 
+<form name=optform>
 <div id=optionsection>
 </div>
+</form>
 
 <div class=dictstuff>
 <p>This extension uses JMdict, which is Copyright © 2017 The Electronic Dictionary Research and Development Group and licensed under the <a href="https://creativecommons.org/licenses/by-sa/3.0/">CC BY-SA 3.0</a> license.</p>
@@ -191,7 +193,6 @@
 <span class="entity">anat</span> - <span class="meaning">anatomical term</span>
 </div>
 </div>
-</form>
 </div>
 </body>
 </html>