PDF Creator now accepts single instances of class

ref #5

src/templates/sponsoring_contract.html

@@ -16,10 +16,10 @@
   </head>
   <body>
     <div class="page">
-      <h1>{{runner_id}}</h1>
-      <h1>{{runner_firstname}}</h1>
-      <h1>{{runner_lastname}}</h1>
-      <h1>{{runner_groupname}}</h1>
+      <h1>ID: {{runner_id}}</h1>
+      <h1>FIRSTNAME: {{runner_firstname}}</h1>
+      <h1>LASTNAME: {{runner_lastname}}</h1>
+      <h1>GROUP: {{runner_groupname}}</h1>
     </div>
   </body>
 </html>