Add title to config.json which will set html>head>title

Read more at https://github.com/Dynalon/mdwiki/issues/58#issuecomment-29785288

--
Close #4

ll_CC/config.json

@@ -2,5 +2,6 @@
     "useSideMenu": true,
     "lineBreaks": "gfm",
     "additionalFooterText": "All content and images © by Your Name Goes Here ",
-    "anchorCharacter": "#"
+    "anchorCharacter": "#",
+    "title": "Your wiki name"
 }