debug: Show current template filename in bottom right

Only displayed when running live server. May remove in the future, just
need it now to make it much easier to reorganize some of the templates.

layouts/baseof.html

@@ -8,6 +8,12 @@
 
         {{ partial "top.html" . }}
 
+        {{ if hugo.IsServer -}}
+            <div style="position: fixed; bottom: 25px; right: 25px;">
+                {{ templates.Current.Name }}
+            </div>
+        {{ end -}}
+
         <div class="main-container">
             {{ if not .IsHome }}
                 {{ partial "breadcrumb.html" . }}