add a link to the raw paste from the pretty paste

fixes wantguns/bin#22

templates/pretty.html.tera

@@ -26,10 +26,11 @@
     </div>
     <div class="topRightBox"> 
         <button id="wrapBtn" onclick="wrapClicked()">&#9166; Wrap</button>
+        <button id="rawBtn" onclick="rawClicked()">= Raw</button>
         <button id="forkBtn" onclick="forkClicked()">&#x2442; Fork</button>
         <button id="newPasteBtn" onclick="newPasteClicked()">&#43; New</button>
     </div>
 </div>
 
 <script src="/static/js/pretty.js"></script>
-{% endblock body %}
+{% endblock body %}